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CVE-2025-43960 — Vulnerability in vrana/adminer — CVE Details

HIGH

Adminer PHP Object Injection issue leads to Denial of Service

Published August 25, 2025Updated August 25, 2025Source: osv

Summary

Adminer 4.8.1, when using Monolog for logging, allows a Denial of Service (memory consumption) via a crafted serialized payload (e.g., using s:1000000000), leading to a PHP Object Injection issue. Remote, unauthenticated attackers can trigger this by sending a malicious serialized object, which forces excessive memory usage, rendering Adminer’s interface unresponsive and causing a server-level DoS. While the server may recover after several minutes, multiple simultaneous requests can cause a complete crash requiring manual intervention.

Advisory Timeline

  • First published August 25, 2025 (413 days ago).
  • Last revised August 25, 2025 — 0 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
vrana/adminer
packagist
v4.2.0, v4.2.1, v4.2.2, v4.2.3 (+22 more)Range-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-502
    Deserialization of Untrusted DataMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.6 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

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

References

Frequently Asked Questions

What is CVE-2025-43960?
Adminer PHP Object Injection issue leads to Denial of Service This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.6/10).
How do I check if my project is affected by CVE-2025-43960?
CVE-2025-43960 affects vrana/adminer. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-43960 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.6

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-mqh4-2mm8-g7w9

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