adminer vulnerabilities (CVE)

CVE records published for adminer, newest first. Follow to get an email when a new one appears.

20 results
7.2High
CVE-2026-109347

Adminer before 6.1.1 RCE via UTF-8 BOM SQLite ATTACH Bypass

vrana adminer

Adminer before 6.1.1 contains a remote code execution vulnerability that allows authenticated SQLite users to bypass ATTACH and VACUUM INTO restrictions by prefixing statements with a UTF-8 byte-order mark. Attackers can attach a database file at a PHP-served…

6.1Medium
CVE-2026-100695

Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCE

vrana adminer

Adminer before 6.0.2 contains a cross-site scripting vulnerability where the CONNECTION_ID() database result is interpolated into JavaScript without proper escaping, allowing a malicious database server to execute arbitrary JavaScript in the authenticated Adm…

8.1High
CVE-2026-34968

Adminer before 5.4.3 Arbitrary File Deletion via SQLite Drop

vrana adminer

Adminer before 5.4.3 contains an arbitrary file deletion vulnerability in SQLite mode where the database-list drop action fails to validate file extensions before deletion. An authenticated attacker can submit arbitrary relative file paths in the db[] paramet…

5.8Medium
CVE-2026-34964

Adminer before 5.5.0 SSRF via PDO DSN Injection

vrana adminer

Adminer before 5.5.0 contains a server-side request forgery vulnerability in the login form's server field validator, which only inspects leading integers for privileged ports and fails to reject non-numeric port values. Attackers can inject PDO DSN keys like…

4.7Medium
CVE-2026-34959

Adminer before 5.5.0 Open Redirect via X-Forwarded-Prefix

vrana adminer

Adminer 4.6.0 before 5.5.0 prepends the client-supplied X-Forwarded-Prefix header to $_SERVER["REQUEST_URI"] with no trusted-proxy check and no validation of the prefix value. An attacker can supply an absolute URL (e.g. X-Forwarded-Prefix: https://evil.examp…

2.3Low
CVE-2026-16434

Adminer before 5.5.1 X-Forwarded-Prefix Backslash Bypass

vrana adminer

Adminer 4.6.0 through 5.5.0 (fixed in 5.5.1) contains an incomplete fix for a prior X-Forwarded-Prefix vulnerability (GHSA-8478-xrj3-h9c2). The validation guard (bootstrap.inc.php) only rejects prefixes matching ^/[^/], blocking //evil.com but allowing values…

8.6High
CVE-2025-43960
adminer adminer

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 …

7.2High
CVE-2021-21311 KEV

SSRF in adminer

vrana adminer

Adminer is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. `adminer.php`) are affected. This is …

98%EPSS