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.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| adminer | 4.6.2 | 5.4.2 |
| vrana/adminer | 4.6.2 | 5.4.2 |
References
Similar Threats
- Unknown UBUNTU-CVE-2026-25892
- High CVE-2025-43960
- Unknown DEBIAN-CVE-2025-43960
- Unknown UBUNTU-CVE-2025-43960
- Medium CVE-2023-45195
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