Vulnerability · Published Sep 4, 2026 · Assigned by GitHub_M
CVE-2026-52772YesWiki: 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`)
Medium 5.5
In plain English
A medium-severity cross-site scripting in yeswiki from YesWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 72.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | yeswiki/yeswiki | 4.6.6 | GHSA-xc7j-3g8q-9vh4 |
Affected products (as reported)
Weakness: CWE-79, CWE-116 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
References
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-xc7j-3g8q-9vh4 x_refsource_CONFIRM
- https://github.com/YesWiki/yeswiki/commit/5d1a4d07fecb0706f33e5dfbbe6ff5ef1892b2a7 x_refsource_MISC
- https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6 x_refsource_MISC