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CVE-2026-35057

XenForo Stored Cross-Site Scripting via Structured Text Mentions

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.3.10, 2.2.19
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

XenForo before 2.3.10 and before 2.2.19 is vulnerable to stored cross-site scripting (XSS) in structured text mentions, primarily affecting legacy profile post content. An attacker can inject malicious scripts through crafted mentions that are stored and executed when other users view the content.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • XenForo XenForo

    From 2.3.0 · fixed in 2.3.10; fixed in 2.2.19

References 2

xenforo.com

GitHub · methosiea/xenforo-2-xss