CVE-2026-104465

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.

  • Published Oct 2, 2026
  • CVSS 5.1 medium
  • 0.2% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-104465 at the National Vulnerability Database