VULNERABILITY INTELLIGENCE

CVE-2025-71278

CVSS score8.8 HIGH
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-04-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-863

Primary references