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.
Published: 2026-04-01
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Wed, 01 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
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.
Title XenForo OAuth2 Unauthorized Scope Request
First Time appeared Xenforo
Xenforo xenforo
Weaknesses CWE-863
CPEs cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*
Vendors & Products Xenforo
Xenforo xenforo
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Subscriptions

Xenforo Xenforo
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-01T15:52:08.811Z

Reserved: 2026-04-01T00:19:58.851Z

Link: CVE-2025-71278

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-04-01T01:16:40.000

Modified: 2026-04-01T18:51:48.267

Link: CVE-2025-71278

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses