CVE-2025-71278 (GCVE-0-2025-71278)

Vulnerability from cvelistv5 – Published: 2026-04-01 00:30 – Updated: 2026-04-01 15:52
VLAI
Title
XenForo OAuth2 Unauthorized Scope Request
Summary
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.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 14:55 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7433 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
XenForo XenForo Affected: 2.3.0 , < 2.3.5 (semver)
    cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2025-01-30 00:00
Show details on NVD website
To clipboard 

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