CVE-2026-25892
HIGH NUCLEIVrana Adminer < 5.4.2 - Improper Input Validation
Title source: ruleDescription
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.
Nuclei Templates (1)
Adminer 4.6.2 - 5.4.1 Unauthenticated Persistent DoS
HIGHVERIFIEDby DhiyaneshDk
Shodan:
http.title:"Adminer"
FOFA:
title="Adminer" || body="Adminer"
Scores
CVSS v3
7.5
EPSS
0.0501
EPSS Percentile
89.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-20
Status
published
Products (2)
adminer/adminer
4.6.2 - 5.4.2
vrana/adminer
4.6.2 - 5.4.2Packagist
Published
Feb 09, 2026
Tracked Since
Feb 18, 2026