GHSA-fxw8-p3x8-7xqxHighCVSS 7.2
XenForo before 2.3.13 contains a path traversal vulnerability in the style archive importer on...
🔗 CVE IDs covered (1)
📋 Description
XenForo before 2.3.13 contains a path traversal vulnerability in the style archive importer on Windows deployments that allows authenticated non-super administrators with style permissions to write arbitrary files outside the intended extraction directory by using backslash-based traversal sequences in ZIP member names. Attackers can craft a malicious ZIP archive with backslash path separators that bypass forward-slash validation to write arbitrary bytes to any web-server-writable path, including the public web root, achieving persistent code execution as the web-server account.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-74239
- https://www.vulncheck.com/advisories/xenforo-path-traversal-via-style-archive-importer-on-windows
- 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-2026-74239
- https://github.com/BomboBombone/CVE-2026-74239
- https://github.com/advisories/GHSA-fxw8-p3x8-7xqx