CVE-2026-82451CWE-79cross-site-scripting

CVE-2026-82451

Medium · published August 29, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
28.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00356 · 28.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-29T18:16Z
References (3)
https://github.com/getformwork/formwork/releases/tag/2.3.11 · [email protected]https://github.com/getformwork/formwork/security/advisories/GHSA-hpgc-57cm-66pc · [email protected]https://www.vulncheck.com/advisories/formwork-stored-xss-via-referer-header · [email protected]
EPSS history
Timeline
  • 30 AUG 16:19Z
    EPSS moved — → 0%
    epss
  • 29 AUG 13:47Z
    Formwork through 2.3.14 Stored XSS via Referer Header
    cvelistv5