MEDIUM 5.1 NVD
CVE-2026-73320
XenForo before 2.3.13 contains an unauthenticated information disclosure vulnerability that allows unauthenticated attackers to retrieve private unfurl records
XenForo before 2.3.13 contains an unauthenticated information disclosure vulnerability that allows unauthenticated attackers to retrieve private unfurl records by supplying predictable auto-increment primary key IDs to the unfurl endpoint. Attackers can enumerate or predict result IDs and query the endpoint without any session, user, or visibility checks to obtain rendered preview HTML, original URLs, and query strings from private conversations and other restricted content.
Affected Products
- xenforo/xenforo
References
- https://bombobombone.github.io/posts/cve-2026-73320/
- https://github.com/BomboBombone/CVE-2026-73320
- https://www.vulncheck.com/advisories/xenforo-unauthenticated-information-disclosure-via-un
- https://xenforo.com/community/threads/security-fixes-released-for-all-xenforo-and-media-ga
- https://xenforo.com/community/threads/xenforo-2-3-13-and-add-ons-released-includes-securit
This medium severity vulnerability with a CVSS score of 5.1 was published on 2026-09-08 via NVD. Affected: xenforo/xenforo.
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