CVE-2025-31684 | OAuth2 Client - Moderately critical - Cross Site Request Forgery - SA-CONTRIB-2025-013

Cross-Site Request Forgery (CSRF) vulnerability in Drupal OAuth2 Client allows Cross Site Request Forgery.This issue affects OAuth2 Client: from 0.0.0 before 4.1.3.

Published: 2025-03-31 Last update: 2025-08-28 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-31684 is rated Moderate Risk (46/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.30%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-31684

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-09 0.15% 0.30% +0.15%
2 2026-03-16 0.08% 0.15% +0.08%
3 2026-01-25 — 0.08% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-31684

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 5.2 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-31684

GitHub Security Advisory for CVE-2025-31684

GHSA-6chf-hhqf-749c · Severity: low · Ecosystem: composer — Drupal OAuth2 Client Cross-Site Request Forgery (CSRF)

Affected software / configurations for CVE-2025-31684

Vendor Product Version Raw CPE
mskcc oauth2_client < 4.1.3 cpe:2.3:a:mskcc:oauth2_client:*:*:*:*:*:drupal:*:*

References for CVE-2025-31684

URL Tags
https://www.drupal.org/sa-contrib-2025-013 Third Party Advisory
cvelogic Threat Intelligence