High severity8.6NVD Advisory· Published Aug 25, 2025· Updated Jun 17, 2026
CVE-2025-43960
CVE-2025-43960
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
vrana/adminerPackagist | <= 4.8.1 | — |
Affected products
3Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-mqh4-2mm8-g7w9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-43960ghsaADVISORY
- github.com/vrana/adminer/compare/v4.8.1...v4.8.2nvdRelease Notes
- www.adminer.orgnvdProduct
News mentions
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