CVE-2026-73318

Summary

XenForo before 2.3.13 contains a missing authorization vulnerability in the force-agreement controller that allows any ACP administrator to access and submit force-agreement forms regardless of their assigned permissions. Attackers can bypass the option permission declared in the navigation configuration to update the global policy last-updated timestamp, forcing all users to re-agree to the privacy policy or terms of service.

Affected Software

Weaknesses

• CWE-863: Incorrect Authorization

References

• 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-2026-73318/
• https://github.com/BomboBombone/CVE-2026-73318
• https://www.vulncheck.com/advisories/xenforo-missing-authorization-via-force-agreement-controller

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