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[ CVE-2026-104465 · Published 2 Oct 2026 ]

Vulnerability in yeswiki

CVSS 6.1 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

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

[ Description ]Official description

YesWiki before 4.6.7 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts via the field parameter of the mail handler. Attackers can craft links whose field value breaks out of the ajax-mail-form action attribute to execute JavaScript in victims' browsers.

[ 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