CVE-2025-71278
HIGH
NVD
CVSS Score
8.8
Severity
HIGH
Published
Apr 01, 2026
Vendor
unknown
Description
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.