Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck
CVE-2026-104465YesWiki before 4.6.7 Reflected XSS via field Parameter in mail Handler
Medium 6.1
In plain English
A medium-severity cross-site scripting in yeswiki from YesWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 88.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- GitHub Security Advisory (GHSA-2fc6-rvp3-fgfj) vendor-advisory
- VulnCheck Advisory: YesWiki before 4.6.7 Reflected XSS via field Parameter in mail Handler third-party-advisory