[ CVE-2026-116203 · Published 25 Oct 2026 ]

Vulnerability in yeswiki

CVSS 6.1 EPSS <1%No fix listed yet

[ Description ]Official description

YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability in the filtertags action, which echoes attacker-controlled token values without output encoding. Anonymous attackers can inject markup via action-attribute parameters that bypasses the allow_raw_html gate, executing JavaScript for every page viewer.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.