CVE-2026-52772CWE-116CWE-79cross-site-scripting

CVE-2026-52772

Medium · published September 5, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
26.0
In the wild
Unconfirmed
What it is

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, Bazar form-field templates still apply |raw('html') to field.label / field.hint in attribute and label-body contexts, resulting stored XSS in form renders. This issue has been patched in version 4.6.6.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00338 · 26.0th percentile
Weaknesses
CWE-116 · Improper Encoding or Escaping of Output; CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-05T04:17Z
References (4)
https://github.com/YesWiki/yeswiki/commit/5d1a4d07fecb0706f33e5dfbbe6ff5ef1892b2a7 · [email protected]https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6 · [email protected]https://github.com/YesWiki/yeswiki/security/advisories/GHSA-xc7j-3g8q-9vh4 · [email protected]https://github.com/YesWiki/yeswiki/security/advisories/GHSA-xc7j-3g8q-9vh4 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 10 SEP 03:17Z
    EPSS moved — → 0%
    epss
  • 04 SEP 23:42Z
    YesWiki: Bazar form-field templates still apply `|raw('html')` to `field.label` / `field.hint` in attribute and label-body contexts — stored XSS in form renders (sibling class of commit `e6b66aa`)
    cvelistv5