GHSA-vggm-cwh9-fm3vMediumCVSS 6.1
XenForo before 2.3.13 contains a cross-site scripting vulnerability in the dynamic redirect...
🔗 CVE IDs covered (1)
📋 Description
XenForo before 2.3.13 contains a cross-site scripting vulnerability in the dynamic redirect handler that allows unauthenticated attackers to execute arbitrary JavaScript in the board origin by crafting a malicious javascript: URI that bypasses host validation. Attackers can embed the board hostname in the URI authority component and use percent-encoded newlines to evade server-side filters, causing authenticated users who perform a Follow action to execute attacker-supplied JavaScript in their browser.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-73319
- https://www.vulncheck.com/advisories/xenforo-xss-via-dynamic-redirect-handler
- https://xenforo.com/community/threads/security-fixes-released-for-all-xenforo-and-media-gallery-versions-2-2-0-2-3-12.239856
- https://xenforo.com/community/threads/xenforo-2-3-13-and-add-ons-released-includes-security-fixes.239857
- https://bombobombone.github.io/posts/cve-2026-73319
- https://github.com/BomboBombone/CVE-2026-73319
- https://github.com/advisories/GHSA-vggm-cwh9-fm3v