Input Validation Bypass in Progress Sitefinity Web Services

CWE-20: Improper Input Validation in web services in Progress Sitefinity 14.1.x through 14.3.x, 14.4.x before 14.4.8152, 15.0.x before 15.0.8234, 15.1.x before 15.1.8335, 15.2.x before 15.2.8441, 15.3.x before 15.3.8531, and 15.4.x before 15.4.8630 allows a remote unauthenticated attacker to compromise the integrity and confidentiality of user accounts. Successful exploitation requires user interaction and a non-default site configuration.

Casky was already ahead

This CVE exploits attack patterns that Casky's 301matched 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.

Analysis

CVE-2026-7195 is an improper input validation vulnerability (CWE-20) affecting Progress Sitefinity versions 14.1 through 15.4 across multiple patch levels. This vulnerability allows remote, unauthenticated attackers to compromise user account integrity and confidentiality without requiring prior system access. While exploitation does require user interaction and a non-default configuration, the high CVSS score of 8.8 reflects the severity of potential account takeover scenarios. Organizations running vulnerable Sitefinity instances—commonly used for content management and digital experience platforms—face significant risk, particularly if they operate non-standard configurations that enable the attack vector.

Casky's platform maps this vulnerability to MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance), enabling practitioners to detect the attack patterns through 301 mapped security skills. Using Claude AI with extended reasoning capabilities, Casky can correlate malicious input patterns characteristic of CWE-20 validation bypasses with behavioral indicators of account compromise. Practitioners would observe findings highlighting suspicious web service requests with crafted payloads designed to bypass input filters, unusual account modification activities following suspicious requests, and patterns consistent with reconnaissance activities gathering user account information. The extended reasoning model helps distinguish between legitimate non-default configurations and those actively being exploited, allowing security teams to prioritize investigation and response efforts against this specific attack chain.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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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 →

301 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-7195.

analyzing-apt-group-with-mitre-navigator

threat intelligence · low

Run

analyzing-campaign-attribution-evidence

threat intelligence · low

Run

analyzing-certificate-transparency-for-phishing

threat intelligence · low

Run

MITRE ATT&CK Techniques

TA0001 TA0043

Investigate the attack patterns behind CVE-2026-7195

Casky has 301 skills that investigate the attack patterns behind CVE-2026-7195. Run one and get CVSS-scored findings in 3 minutes.

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