CVE CVE-2026-25892

CVE-2026-25892

PHP

Severity: HIGH
CVSS: 7.5CVSS
Published: 2026-02-09
Last modified: 2026-02-20
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-20

Description

Adminer is open-source database management software. Adminer v5.4.1 and earlier has a version check mechanism where adminer.org sends signed version info via JavaScript postMessage, which the browser then POSTs to ?script=version. This endpoint lacks origin validation and accepts POST data from any source. An attacker can POST version[] parameter which PHP converts to an array. On next page load, openssl_verify() receives this array instead of string and throws TypeError, returning HTTP 500 to all users. Upgrade to Adminer 5.4.2.

References

https://github.com/vrana/adminer/commit/21d3a3150388677b18647d68aec93b7850e457d3
https://github.com/vrana/adminer/releases/tag/v5.4.2
https://github.com/vrana/adminer/security/advisories/GHSA-q4f2-39gr-45jh

Summary

Description

References