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CVE-2025-46550

Reflected XSS (Unauthenticated) in Yeswiki v4.5.1

Severity
Medium 6.1
Published
28 Apr 2025
Last changed
17 Jun 2026
Added to UpHeron
3 Nov 2026
Fixed in
4.5.4
Also known as
GHSA-ggqx-43h2-55jp
Sources
NVD, Project advisories (GitHub)

Description

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the `/?BazaR` endpoint and `idformulaire` parameter are vulnerable to cross-site scripting. An attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link. Stolen cookies allow the attacker to take over the user’s session. This vulnerability may also…

Affected software

SoftwareAffected versions
YesWikiServers and applications · cpe:a:yeswiki:yeswiki
  • Every version before 4.5.4
YesWikiServers and applications · github:yeswiki/yeswiki
  • Every version before 4.5.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-46550
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-46550
  • GitHub Advisory Database https://github.com/advisories/GHSA-ggqx-43h2-55jp
  • github.com https://github.com/YesWiki/yeswiki/security/advisories/GHSA-ggqx-43h2-55jp