Vulnerability Details CVE-2025-71278
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.7%
CVSS Severity
CVSS v3 Score 8.8
References