Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Roland Murg WP Booking System wp-booking-system allows Reflected XSS.This issue affects WP Booking System: from n/a through 2.1.0.6.
Casky was already ahead
This CVE exploits attack patterns that Casky's 323matched 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.
CVE-2026-57639 represents a Reflected Cross-Site Scripting (XSS) vulnerability in the Roland Murg WP Booking System WordPress plugin, affecting versions through 2.1.0.6. This vulnerability allows attackers to inject malicious JavaScript code that executes in users' browsers when they interact with specially crafted URLs or web pages. WordPress site administrators and users of this booking plugin are directly at risk, as attackers can steal session cookies, perform unauthorized actions on behalf of users, or redirect visitors to malicious sites. The reflected nature of this XSS means the payload must be delivered through a link or user interaction, making it a vector for social engineering attacks against WordPress installations relying on this popular booking functionality.
Casky.ai's 323 matching skills leverage Claude AI's extended reasoning to detect the attack patterns mapped to MITRE techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). Security practitioners using the platform would identify this vulnerability through pattern recognition of unsanitized user input flows and improper output encoding in the booking system's web page generation—the core of CWE-79. When analyzing findings, practitioners would see skills mapping injection points where user-supplied parameters are reflected without neutralization, reconnaissance activities probing for XSS endpoints, and initial access attempts exploiting trusted plugin functionality. The extended reasoning capability enables detection of sophisticated payloads and attack chains, helping teams understand not just that XSS exists, but how adversaries chain it with other techniques for broader compromise.
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These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-57639.
Casky has 323 skills that investigate the attack patterns behind CVE-2026-57639. Run one and get CVSS-scored findings in 3 minutes.
Run the skill that detects this →Access with Stolen Session Cookie
penetration testing · medium
Account Access Removal
cloud security · low
Account Manipulation
cloud security · low
Account Manipulation: Account Linking
cloud security · low
Account Manipulation: Change Account Details
cloud security · low
Account Manipulation: Change of Payment Details
phishing defense · medium
Account Takeover
red teaming · high
Account Takeover
red teaming · high
Account Takeover
phishing defense · medium
Account Takeover: Exposed Login Credential
red teaming · high
Account Takeover: Exposed Login Credential
phishing defense · medium
achieving-cmmc-level-2-compliance
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threat intelligence · low
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threat intelligence · low
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mobile security · low
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phishing defense · medium
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analyzing-office365-audit-logs-for-compromise
cloud security · low
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threat intelligence · low
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threat intelligence · low
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cloud security · low
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cloud security · low
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threat intelligence · low
automating-ioc-enrichment
threat intelligence · low
Browser Session Hijacking
cloud security · low
Brute Force: Credential Stuffing
threat intelligence · low
building-adversary-infrastructure-tracking-system
threat intelligence · low
building-attack-pattern-library-from-cti-reports
threat intelligence · low
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collecting-threat-intelligence-with-misp
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red teaming · high
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penetration testing · medium
conducting-pass-the-ticket-attack
red teaming · high
conducting-wireless-network-penetration-test
penetration testing · medium
Convert to Cryptocurrency
cloud security · low
correlating-threat-campaigns
threat intelligence · low
Create Fake Materials: Fake Website
phishing defense · medium
Create Fake Materials: Fake Website
threat intelligence · low
Create Fake Materials: Fake Website
phishing defense · medium
Create Fake Materials: Fake Website
phishing defense · medium
Create Fake Materials: Fake Website
phishing defense · medium
Create Fake Materials: Fake Website
penetration testing · medium
Delete Relevant Emails
phishing defense · medium
detecting-api-enumeration-attacks
api security · medium
detecting-aws-guardduty-findings-automation
cloud security · low
detecting-aws-iam-privilege-escalation
cloud security · low
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cloud security · low
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cloud security · low
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cloud security · low
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cloud security · low
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cloud security · low
detecting-serverless-function-injection
cloud security · low
detecting-shadow-api-endpoints
api security · medium
detecting-shadow-it-cloud-usage
cloud security · low
detecting-suspicious-oauth-application-consent
cloud security · low
Electronic Funds Transfer: Wire Transfer
phishing defense · medium
Electronic Funds Transfer: Wire Transfer
threat intelligence · low
Email Spoofing
threat intelligence · low
emulating-cloud-attacks-with-stratus-red-team
cloud security · low
enumerating-cloud-with-cloudfox
cloud security · low
evaluating-threat-intelligence-platforms
threat intelligence · low
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penetration testing · medium
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compliance governance · low
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red teaming · high
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red teaming · high
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red teaming · high
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red teaming · high
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api security · medium
exploiting-aws-with-pacu
cloud security · low
exploiting-broken-function-level-authorization
api security · medium
exploiting-broken-link-hijacking
web application security · medium
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red teaming · high
exploiting-deeplink-vulnerabilities
mobile security · low
exploiting-excessive-data-exposure-in-api
api security · medium
exploiting-http-request-smuggling
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web application security · medium
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mobile security · low
exploiting-insecure-deserialization
web application security · medium
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api security · medium
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red teaming · high
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red teaming · high
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red teaming · high
exploiting-nosql-injection-vulnerabilities
web application security · medium
exploiting-oauth-misconfiguration
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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penetration testing · medium
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exploiting-vulnerabilities-with-metasploit-framework
vulnerability management · medium
exploiting-websocket-vulnerabilities
web application security · medium
exploiting-zerologon-vulnerability-cve-2020-1472
red teaming · high
Gather Customer Information
threat intelligence · low
generating-threat-intelligence-reports
threat intelligence · low
hunting-advanced-persistent-threats
threat intelligence · low
Impersonate Account Holder
phishing defense · medium
Impersonate Account Holder
phishing defense · medium
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api security · medium
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implementing-api-threat-protection-with-apigee
api security · medium
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devsecops · low
implementing-attack-path-analysis-with-xm-cyber
vulnerability management · medium
implementing-aws-config-rules-for-compliance
cloud security · low
implementing-aws-macie-for-data-classification
cloud security · low
implementing-aws-nitro-enclave-security
cloud security · low
implementing-aws-security-hub
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cloud security · low
implementing-azure-defender-for-cloud
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vulnerability management · medium
implementing-cloud-waf-rules
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implementing-cloud-workload-protection
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devsecops · low
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threat intelligence · low
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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-gdpr-data-protection-controls
compliance governance · low
implementing-github-advanced-security-for-code-scanning
devsecops · low
implementing-hipaa-security-rule-safeguards
compliance governance · low
implementing-infrastructure-as-code-security-scanning
devsecops · low
implementing-iso-27001-information-security-management
compliance governance · low
implementing-mobile-application-management
mobile security · low
implementing-patch-management-workflow
vulnerability management · medium
implementing-pci-dss-compliance-controls
compliance governance · low
implementing-policy-as-code-with-open-policy-agent
devsecops · low
implementing-rapid7-insightvm-for-scanning
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-security-information-sharing-with-stix2
threat intelligence · low
implementing-semgrep-for-custom-sast-rules
devsecops · low
implementing-stix-taxii-feed-integration
threat intelligence · low
implementing-taxii-server-with-opentaxii
threat intelligence · low
implementing-threat-intelligence-lifecycle-management
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implementing-zero-trust-in-cloud
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-intelligence-lifecycle
threat intelligence · low
managing-third-party-vendor-risk
compliance governance · low
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red teaming · high
mapping-mitre-attack-techniques
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modeling-threats-with-opencti
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moving-laterally-with-netexec
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operating-havoc-c2
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red teaming · high
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threat intelligence · low
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mobile security · low
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api security · medium
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devsecops · low
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performing-external-network-penetration-test
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performing-graphql-depth-limit-attack
api security · medium
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performing-kerberoasting-attack
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performing-malware-ioc-extraction
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performing-nist-csf-maturity-assessment
compliance governance · low
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red teaming · high
performing-osint-with-spiderfoot
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performing-physical-intrusion-assessment
red teaming · high
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performing-privilege-escalation-on-linux
red teaming · high
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devsecops · low
performing-second-order-sql-injection
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performing-soap-web-service-security-testing
api security · medium
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threat intelligence · low
performing-threat-intelligence-sharing-with-misp
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web application security · medium
performing-wireless-network-penetration-test
penetration testing · medium
Phishing
threat intelligence · low
Phishing
threat intelligence · low
Phone Number Spoofing: Official Phone Number Spoofing
red teaming · high
prioritizing-vulnerabilities-with-cvss-scoring
vulnerability management · medium
processing-stix-taxii-feeds
threat intelligence · low
profiling-threat-actor-groups
threat intelligence · low
relaying-ntlm-for-adcs-esc8
red teaming · high
remediating-s3-bucket-misconfiguration
cloud security · low
reverse-engineering-ios-app-with-frida
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scanning-containers-with-trivy-in-cicd
devsecops · low
scanning-iac-and-images-with-trivy
devsecops · low
scanning-infrastructure-with-nessus
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securing-api-gateway-with-aws-waf
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
securing-kubernetes-on-cloud
cloud security · low
securing-serverless-functions
cloud security · low
Stage Capabilities: SEO Poisoning
threat intelligence · low
testing-android-intents-for-vulnerabilities
mobile security · low
testing-api-authentication-weaknesses
api security · medium
testing-api-for-broken-object-level-authorization
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
testing-for-json-web-token-vulnerabilities
web application security · medium
testing-for-open-redirect-vulnerabilities
web application security · medium
testing-for-sensitive-data-exposure
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web application security · medium
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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
Use Alternate Authentication Material: Application Access Token
cloud security · low
Use Alternate Authentication Material: Application Access Token
cloud security · low
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