CVE-2026-52772: Yeswiki

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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 products

• Yeswiki Yeswiki: before 4.6.6 (fixed in 4.6.6)

Published 2026-09-05. Last modified 2026-09-09.