CVE-2025-31691

CRITICAL
Published Mar 31, 2025 Modified Sep 2, 2025 CWE-862

Description

Missing Authorization vulnerability in Drupal OAuth2 Server allows Forceful Browsing.This issue affects OAuth2 Server: from 0.0.0 before 2.1.0.

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CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-862 Missing Authorization

Affected Products

Vendor Product
oauth2_server_project oauth2_server

References

Frequently Asked Questions

What is CVE-2025-31691? +
Missing Authorization vulnerability in Drupal OAuth2 Server allows Forceful Browsing.This issue affects OAuth2 Server: from 0.0.0 before 2.1.0. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-31691? +
CVE-2025-31691 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-31691? +
CVE-2025-31691 affects products from oauth2_server_project, specifically: oauth2_server. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-31691? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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