CVE-2026-25892 Scanner
CVE-2026-25892 Scanner - Denial of Service (DoS) vulnerability in Adminer
Used 2.1k times · 3.4k assets checked · url
CVE
CVE-2026-25892
7.5
CVSShigh
Exploitable remotely over the internet · no authentication required.
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.
Attack Vector
Network
Privileges Req.
None
User Interaction
None
adminer
Updated Oct 24, 2026View on NVD →
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CVE history: adminer
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