Drupal core - Moderately critical - Gadget Chain - SA-CORE-2025-003

criticalCVE-2025-31674

Project: Drupal core Date: 2025-February-19 Security risk: Moderately critical 14 ∕ 25 AC:Complex/A:Admin/CI:All/II:All/E:Theoretical/TD:Uncommon Vulnerability: Gadget Chain Affected versions: >= 8.0.0 < 10.3.13 || >= 10.4.0 < 10.4.3 || >= 11.0.0 < 11.0.12 || >= 11.1.0 < 11.1.3 CVE IDs: CVE-2025-31674 Description: Drupal core contains a potential PHP Object Injection vulnerability that (if combined with another exploit) could lead to Arbitrary File Inclusion. Techniques exist to escalate this attack to Remote Code Execution. It is not directly exploitable. This issue is mitigated by the fact that in order for it to be exploitable, a separate vulnerability must be present to allow an attacker to pass unsafe input to unserialize() . There are no such known exploits in Drupal core. Solution: Install the latest version: If you use Drupal 10.3.x, update to Drupal 10.3.13 If you use Drupal 10.4.x, update to Drupal 10.4.3 If you use Drupal 11.0.x, update to Drupal 11.0.12 If you use Drupal 11.1.x, update to Drupal 11.1.3 All versions of Drupal 10 prior to 10.3 are end-of-life and do not receive security coverage. ( Drupal 8 and Drupal 9 have both reached end-of-life.) Reported By: anzuukino shin24 Fixed By: ghost of drupal past Dave Long (longwave) of the Drupal Security Team Drew Webber (mcdruid) of the Drupal Security Team nicxvan shin24

CSIRTS triage

vendor: Drupal product: Drupal coreOtheraffected: >= 8.0.0 < 10.3.13 || >= 10.4.0 < 10.4.3 || >= 11.0.0 < 11.0.12 || >= 11.1.0 < 11.1.3

What: A potential PHP Object Injection vulnerability could lead to Arbitrary File Inclusion.
Who is affected: Drupal installations using affected versions.
Urgency: Remediation is critical as it could lead to remote code execution if combined with another exploit.
Action: Update to the latest version of Drupal.

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Details

Source: Drupal Security Advisories (INTL · vendor-psirt · site)
Severity: critical
Published: 2025-02-19
Exploitation: Not in CISA KEV at last sync

Original advisory: https://www.drupal.org/sa-core-2025-003

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-316740.54% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-31674	coverage & exploitation status	NVD · CVE.org

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