Path traversal vulnerability exists in GROWI v7.5.0 and earlier, which may allow an attacker to execute arbitrary EJS templates on the server when an email server is running in GROWI.
Casky was already ahead
This CVE exploits attack patterns that Casky's 331matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.
This vulnerability affects GROWI v7.5.0 and earlier, introducing a critical path traversal flaw that allows attackers to escape directory restrictions and execute arbitrary EJS templates on affected servers running email functionality. The vulnerability has a CVSS score of 7.2 (high severity) and exploits improper input validation (CWE-22) to bypass security controls. Organizations deploying GROWI as a wiki or knowledge management platform are at risk, particularly those with email services enabled. Successful exploitation could lead to remote code execution, data exfiltration, and complete server compromise, making this a significant threat to operational security posture.
Casky's 331 matched security skills leverage Claude's extended reasoning to detect the attack patterns underlying this vulnerability across both Initial Access (TA0001) and Discovery (TA0007) MITRE ATT&CK techniques. Practitioners using Casky would observe detection patterns including: suspicious file path requests containing traversal sequences (../, ..\) targeting template directories; abnormal EJS template processing with unexpected variable bindings; email server process execution of user-supplied template code; and anomalous file system access patterns attempting to reach configuration or system directories. The platform's skills would correlate these indicators to reveal the attacker's progression from initial reconnaissance of email functionality through exploitation of the path traversal mechanism to achieve template injection and code execution.
Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →
These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-41951.
Casky has 331 skills that investigate the attack patterns behind CVE-2026-41951. Run one and get CVSS-scored findings in 3 minutes.
Run the skill that detects this →analyzing-office365-audit-logs-for-compromise
cloud security · low
analyzing-persistence-mechanisms-in-linux
threat hunting · low
analyzing-powershell-empire-artifacts
threat hunting · low
analyzing-ransomware-network-indicators
threat hunting · low
auditing-aws-s3-bucket-permissions
cloud security · low
auditing-azure-active-directory-configuration
cloud security · low
auditing-cloud-with-cis-benchmarks
cloud security · low
auditing-gcp-iam-permissions
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auditing-kubernetes-cluster-rbac
cloud security · low
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cloud security · low
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red teaming · high
building-cloud-siem-with-sentinel
cloud security · low
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devsecops · low
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detecting-azure-lateral-movement
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detecting-azure-service-principal-abuse
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detecting-azure-storage-account-misconfigurations
cloud security · low
detecting-broken-object-property-level-authorization
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detecting-kerberoasting-attacks
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detecting-mimikatz-execution-patterns
threat hunting · low
detecting-misconfigured-azure-storage
cloud security · low
detecting-mobile-malware-behavior
mobile security · low
detecting-modbus-command-injection-attacks
ot ics security · medium
detecting-modbus-protocol-anomalies
ot ics security · medium
detecting-ntlm-relay-with-event-correlation
threat hunting · low
detecting-oauth-token-theft
cloud security · low
detecting-pass-the-hash-attacks
threat hunting · low
detecting-privilege-escalation-attempts
threat hunting · low
detecting-process-hollowing-technique
threat hunting · low
detecting-qr-code-phishing-with-email-security
phishing defense · medium
detecting-s3-data-exfiltration-attempts
cloud security · low
detecting-serverless-function-injection
cloud security · low
detecting-service-account-abuse
threat hunting · low
detecting-shadow-api-endpoints
api security · medium
detecting-shadow-it-cloud-usage
cloud security · low
detecting-spearphishing-with-email-gateway
phishing defense · medium
detecting-stuxnet-style-attacks
ot ics security · medium
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cloud security · low
detecting-suspicious-powershell-execution
threat hunting · low
detecting-t1003-credential-dumping-with-edr
threat hunting · low
detecting-t1055-process-injection-with-sysmon
threat hunting · low
detecting-t1548-abuse-elevation-control-mechanism
threat hunting · low
detecting-wmi-persistence
threat hunting · low
executing-active-directory-attack-simulation
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red teaming · high
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exploiting-active-directory-certificate-services-esc1
red teaming · high
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red teaming · high
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api security · medium
exploiting-broken-function-level-authorization
api security · medium
exploiting-broken-link-hijacking
web application security · medium
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red teaming · high
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mobile security · low
exploiting-excessive-data-exposure-in-api
api security · medium
exploiting-http-request-smuggling
web application security · medium
exploiting-idor-vulnerabilities
web application security · medium
exploiting-insecure-data-storage-in-mobile
mobile security · low
exploiting-insecure-deserialization
web application security · medium
exploiting-jwt-algorithm-confusion-attack
api security · medium
exploiting-kerberoasting-with-impacket
red teaming · high
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web application security · medium
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red teaming · high
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red teaming · high
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web application security · medium
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web application security · medium
exploiting-prototype-pollution-in-javascript
web application security · medium
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web application security · medium
exploiting-server-side-request-forgery
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web application security · medium
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vulnerability management · medium
exploiting-websocket-vulnerabilities
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threat hunting · low
hunting-for-cobalt-strike-beacons
threat hunting · low
hunting-for-command-and-control-beaconing
threat hunting · low
hunting-for-data-exfiltration-indicators
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hunting-for-dcom-lateral-movement
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hunting-for-dcsync-attacks
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threat hunting · low
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threat hunting · low
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threat hunting · low
hunting-for-lolbins-execution-in-endpoint-logs
threat hunting · low
hunting-for-ntlm-relay-attacks
threat hunting · low
hunting-for-persistence-mechanisms-in-windows
threat hunting · low
hunting-for-persistence-via-wmi-subscriptions
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threat hunting · low
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threat hunting · low
hunting-for-registry-run-key-persistence
threat hunting · low
hunting-for-scheduled-task-persistence
threat hunting · low
hunting-for-shadow-copy-deletion
threat hunting · low
hunting-for-spearphishing-indicators
threat hunting · low
hunting-for-startup-folder-persistence
threat hunting · low
hunting-for-supply-chain-compromise
threat hunting · low
hunting-for-suspicious-scheduled-tasks
threat hunting · low
hunting-for-t1098-account-manipulation
threat hunting · low
hunting-for-unusual-network-connections
threat hunting · low
hunting-for-unusual-service-installations
threat hunting · low
hunting-for-webshell-activity
threat hunting · low
implementing-anti-phishing-training-program
phishing defense · medium
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api security · medium
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api security · medium
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api security · medium
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api security · medium
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api security · medium
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api security · medium
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api security · medium
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devsecops · low
implementing-attack-path-analysis-with-xm-cyber
vulnerability management · medium
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cloud security · low
implementing-aws-macie-for-data-classification
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cloud security · low
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cloud security · low
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cloud security · low
implementing-azure-defender-for-cloud
cloud security · low
implementing-cloud-dlp-for-data-protection
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cloud security · low
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cloud security · low
implementing-cloud-vulnerability-posture-management
vulnerability management · medium
implementing-cloud-waf-rules
cloud security · low
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cloud security · low
implementing-code-signing-for-artifacts
devsecops · low
implementing-conduit-security-for-ot-remote-access
ot ics security · medium
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implementing-dmarc-dkim-spf-email-security
phishing defense · medium
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ot ics security · medium
implementing-email-sandboxing-with-proofpoint
phishing defense · medium
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vulnerability management · medium
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devsecops · low
implementing-gcp-binary-authorization
cloud security · low
implementing-gcp-organization-policy-constraints
cloud security · low
implementing-gcp-vpc-firewall-rules
cloud security · low
implementing-github-advanced-security-for-code-scanning
devsecops · low
implementing-google-workspace-phishing-protection
phishing defense · medium
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ot ics security · medium
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ot ics security · medium
implementing-infrastructure-as-code-security-scanning
devsecops · low
implementing-mimecast-targeted-attack-protection
phishing defense · medium
implementing-mobile-application-management
mobile security · low
implementing-nerc-cip-compliance-controls
ot ics security · medium
implementing-network-segmentation-for-ot
ot ics security · medium
implementing-ot-incident-response-playbook
ot ics security · medium
implementing-ot-network-traffic-analysis-with-nozomi
ot ics security · medium
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ot ics security · medium
implementing-patch-management-workflow
vulnerability management · medium
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devsecops · low
implementing-proofpoint-email-security-gateway
phishing defense · medium
implementing-purdue-model-network-segmentation
ot ics security · medium
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vulnerability management · medium
implementing-secret-scanning-with-gitleaks
devsecops · low
implementing-secrets-management-with-vault
cloud security · low
implementing-secrets-scanning-in-ci-cd
devsecops · low
implementing-semgrep-for-custom-sast-rules
devsecops · low
implementing-vulnerability-management-with-greenbone
vulnerability management · medium
implementing-vulnerability-remediation-sla
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web application security · medium
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cloud security · low
implementing-zero-trust-network-access
cloud security · low
integrating-dast-with-owasp-zap-in-pipeline
devsecops · low
integrating-sast-into-github-actions-pipeline
devsecops · low
intercepting-mobile-traffic-with-burpsuite
mobile security · low
managing-cloud-identity-with-okta
cloud security · low
performing-active-directory-bloodhound-analysis
red teaming · high
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phishing defense · medium
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performing-cloud-native-threat-hunting-with-aws-detective
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cloud security · low
performing-container-image-hardening
devsecops · low
performing-content-security-policy-bypass
web application security · medium
performing-credential-access-with-lazagne
red teaming · high
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phishing defense · medium
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mobile security · low
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penetration testing · medium
performing-gcp-penetration-testing-with-gcpbucketbrute
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cloud security · low
performing-graphql-depth-limit-attack
api security · medium
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api security · medium
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web application security · medium
performing-http-parameter-pollution-attack
web application security · medium
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ot ics security · medium
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red teaming · high
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penetration testing · medium
performing-jwt-none-algorithm-attack
api security · medium
performing-kerberoasting-attack
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ot ics security · medium
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ot ics security · medium
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ot ics security · medium
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web application security · medium
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remediating-s3-bucket-misconfiguration
cloud security · low
reverse-engineering-ios-app-with-frida
mobile security · low
scanning-containers-with-trivy-in-cicd
devsecops · low
scanning-infrastructure-with-nessus
vulnerability management · medium
securing-api-gateway-with-aws-waf
cloud security · low
securing-aws-iam-permissions
cloud security · low
securing-aws-lambda-execution-roles
cloud security · low
securing-azure-with-microsoft-defender
cloud security · low
securing-container-registry-images
cloud security · low
securing-github-actions-workflows
devsecops · low
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ot ics security · medium
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cloud security · low
securing-remote-access-to-ot-environment
ot ics security · medium
securing-serverless-functions
cloud security · low
testing-android-intents-for-vulnerabilities
mobile security · low
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api security · medium
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api security · medium
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api security · medium
testing-api-security-with-owasp-top-10
web application security · medium
testing-cors-misconfiguration
web application security · medium
testing-for-broken-access-control
web application security · medium
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web application security · medium
testing-for-email-header-injection
web application security · medium
testing-for-host-header-injection
web application security · medium
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web application security · medium
testing-for-open-redirect-vulnerabilities
web application security · medium
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web application security · medium
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web application security · medium
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penetration testing · medium
testing-for-xss-vulnerabilities-with-burpsuite
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testing-for-xxe-injection-vulnerabilities
web application security · medium
testing-jwt-token-security
web application security · medium
testing-mobile-api-authentication
mobile security · low
testing-oauth2-implementation-flaws
api security · medium
testing-websocket-api-security
api security · medium
triaging-vulnerabilities-with-ssvc-framework
vulnerability management · medium
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