VULNERABILITY INTELLIGENCE
CVE-2026-52762
EPSS probability0.78%
CISA KEVNot currently listed
Published2026-09-05
Last modified2026-09-08
Description
YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki Bazar contains a stored Server-Side Template Injection (SSTI) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (RCE). An authenticated administrator can place arbitrary Twig expressions into the Semantic template (Twig) field (bn_sem_template), and that content is later executed server-side when public semantic endpoints are requested. This issue has been patched in version 4.6.6.
Weakness classification
- security-advisories@github.com: CWE-1336