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[ CVE-2026-116206 · Published 25 Oct 2026 ]

Vulnerability in yeswiki

CVSS 6.4 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

YesWiki from 4.2.0 before 4.7.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject script into comment bodies using the wakka raw-HTML syntax. Attackers can post comments via the /api/comments endpoint that render unescaped through the Twig raw filter, executing JavaScript in administrators' and visitors' sessions.

[ 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.

[ References ]References