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[ CVE-2026-116205 · Published 25 Oct 2026 ]

Vulnerability in yeswiki

CVSS 5.3 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

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

[ Description ]Official description

YesWiki before 4.7.0 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to fetch arbitrary URLs by supplying [[|URL]] wiki syntax to the render handler. Attackers can pass the syntax in the content parameter of the page render handler to reach internal hosts and ports and read their responses.

[ 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