Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xenforo | Xenforo | >= 2.3.0, < 2.3.5 |
Related Weaknesses (CWE)
References
- https://www.vulncheck.com/advisories/xenforo-oauth2-unauthorized-scope-requestThird Party Advisory
- https://xenforo.com/community/threads/xenforo-2-3-5-includes-security-fix-add-onRelease Notes
FAQ
What is CVE-2025-71278?
CVE-2025-71278 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...
How severe is CVE-2025-71278?
CVE-2025-71278 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-71278?
Check the references section above for vendor advisories and patch information. Affected products include: Xenforo Xenforo.