CVE-2026-82451

MEDIUM 6.1

Formwork < 2.3.11 Stored XSS via Referer Header

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	getformwork
Product	formwork
Published	Aug 29, 2026
Last Updated	Sep 24, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

getformwork / Formwork

2.0.0 ≤ 2.3.10

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/getformwork/formwork/security/advisories/GHSA-hpgc-57cm-66pc github.com: https://github.com/getformwork/formwork/releases/tag/2.3.11 vulncheck.com: https://www.vulncheck.com/advisories/formwork-stored-xss-via-referer-header

Credits

Abdurakhmon Kodirov