CVE-2026-82451
MediumCVSS 6.1Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
Formwork before 2.3.11 contains a stored cross-site scripting vulnerability in visit tracking that records the Referer header host unescaped. Unauthenticated attackers can craft malicious Referer headers to inject markup that executes in administrator browsers when viewing the Statistics panel.
Risk Assessment
The risk includes script execution in the administrator's context, potentially leading to admin panel takeover or data theft.
Recommendation
Upgrade Formwork to version 2.3.11 or later, which includes the fix.
Other vulnerabilities in Formwork
See all- CVE-2026-105950Low
A security vulnerability has been detected in getformwork formwork up to 2.3.12. Impacted is the function DomSanitizer::sanitizeNodeAttribute of the file formwork/src/Sanitizer/DomSanitizer.php of the component URI Sanitizer. Such manipulation of the argument formaction leads to cross site scripting. The attack may be launched remotely.
- CVE-2026-104478High
Formwork before 2.3.13 contains a path traversal vulnerability in BackupController that allows authenticated panel users to read or delete arbitrary files. Attackers with backup download or delete permission can supply a base64-encoded backslash-separated traversal payload that bypasses PHP basename on Linux to access files outside the backup directory.
- CVE-2025-65956Medium
Formwork, a flat file-based CMS, prior to version 2.2.0 allows insertion of unsanitized data into the blog tag field, resulting in stored XSS. Any user with Formwork credentials who views or edits an affected blog post will have attacker-controlled script executed in their browser.
Original NVD description (English source)
Formwork before 2.3.11 contains a stored cross-site scripting vulnerability in visit tracking that records the Referer header host unescaped. Unauthenticated attackers can craft malicious Referer headers to inject markup that executes in administrator browsers when viewing the Statistics panel.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS