CVE-2026-73312 — XenForo < 2.3.13 Refresh Token Replay via Expired Access Token
XenForo before 2.3.13 contains a refresh token replay vulnerability that allows attackers to reuse a refresh token multiple times by exploiting the failure to mark tokens as con…
Published: 2026-09-08 · CVSS: 9.1 · CVSS 4.0
XenForo before 2.3.13 contains a refresh token replay vulnerability that allows attackers to reuse a refresh token multiple times by exploiting the failure to mark tokens as consumed when the parent access token has expired. Attackers can repeatedly submit the same refresh token to generate additional independent token pairs, achieving persistent unauthorized access for the token's full lifetime.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7