CVE-2025-31684: Drupal/oauth2 client Drupal OAuth2 Client Cross-Site Request Vulnerability

LOW
Advisory Identifier: GHSA-6chf-hhqf-749c
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CVSS 6.8
CWE-352
Published
Advisory Summary

CVE-2025-31684 is a LOW (CVSS 6.8) drupal oauth2 client cross-site request vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Drupal/oauth2 client libraries in the Packagist ecosystem. The issue involves drupal oauth2 client cross-site request forgery (csrf). Remediation is available by upgrading affected packages to version 4.1.3.

CVE-2025-31684 at a Glance

CVE Identifier CVE-2025-31684
GHSA Identifier GHSA-6chf-hhqf-749c
Severity LOW
CVSS v3.1 Base Score 6.8
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Drupal/oauth2 client
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2025-31684

To remediate this vulnerability, upgrade all affected Drupal/oauth2 client dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

drupal/oauth2_client fixed: 4.1.3 
Upgrade drupal/oauth2_client to 4.1.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for drupal/oauth2_client

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-31684, inspect your project dependencies for Drupal/oauth2 client:

inspect dependencies for drupal/oauth2_client

Analyze the terminal output to locate any version of Drupal/oauth2 client in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.3), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-352: Cross-Site Request Forgery (CSRF), where the web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. In Drupal/oauth2 client, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2025-31684 Affected Drupal/oauth2 client Versions

1 component(s)
Fixed Versions:
4.1.3
Product / Package Ecosystem Affected Versions Fixed Version
drupal/oauth2_client
 Packagist
< 4.1.3
4.1.3

References

NVD — CVE-2025-31684 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-31684
git.drupalcode.org/project/oauth2_clie... PACKAGE
https://git.drupalcode.org/project/oauth2_client
www.drupal.org/sa-contrib-2025-013 WEB
https://www.drupal.org/sa-contrib-2025-013

Frequently Asked Questions

What is CVE-2025-31684?
CVE-2025-31684 is a security vulnerability in Drupal/oauth2 client involving Drupal OAuth2 Client Cross-Site Request Forgery (CSRF) under CWE-352: Cross-Site Request Forgery (CSRF).
Which Drupal/oauth2 client versions are affected?
Affected versions include releases prior to 4.1.3 across affected packages: drupal/oauth2_client.
What version fixes CVE-2025-31684?
Upgrading to 4.1.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal/oauth2_client affected?
Yes, drupal/oauth2_client is affected in releases prior to 4.1.3. Upgrade your dependency to 4.1.3 or later.
What is the CVSS score of CVE-2025-31684?
CVE-2025-31684 has a CVSS v3.1 base score of 6.8 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H.
What CWE is associated with CVE-2025-31684?
CVE-2025-31684 is classified under CWE-352: Cross-Site Request Forgery (CSRF) (The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.).
How can I check Packagist dependencies for CVE-2025-31684?
Run the dependency tree command: 'inspect dependencies for drupal/oauth2_client'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6chf-hhqf-749c",
  "modified" : "2025-04-29T20:20:34Z",
  "published" : "2025-04-01T00:30:34Z",
  "aliases" : [ "CVE-2025-31684" ],
  "summary" : "Drupal OAuth2 Client Cross-Site Request Forgery (CSRF)",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/oauth2_client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-31684"
  }, {
    "type" : "PACKAGE",
    "url" : "https://git.drupalcode.org/project/oauth2_client"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-contrib-2025-013"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-02T17:10:48Z",
    "nvd_published_at" : "2025-03-31T22:15:20Z"
  }
}