CVE-2025-71278 — XenForo OAuth2 Unauthorized Scope Request
XenForo before 2.3.5 allows OAuth2 client applications to request unauthorized scopes. This affects any customer using OAuth2 clients on any version of XenForo 2.3 prior to 2.3.…
Published: 2026-04-01 · CVSS: 8.7 · CVSS 4.0
XenForo before 2.3.5 allows OAuth2 client applications to request unauthorized scopes. This affects any customer using OAuth2 clients on any version of XenForo 2.3 prior to 2.3.5, potentially allowing client applications to gain access beyond their intended authorization level.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7