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CVE-2026-56705

CVE-2026-56705 · Adminer before 5.4.3 Remote Code Execution via MSSQL PDO DSN Injection

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Adminer before 5.4.3 fails to sanitize the server field before constructing a PDO DSN string, allowing unauthenticated attackers to inject ODBC parameters via semicolons. Attackers can inject TraceFile and TraceOn parameters to write PHP code to the web root, achieving remote code execution when the trace file is accessed.

CVSS 9.3 · Critical · EPSS 0.9% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • adminer

    Versions
    • ≥ 0, < 5.4.3: Affected (semver)
    • 5.4.3: Not affected (semver)

    Update to 5.4.3

  • adminer Debian:12

    Versions
    • 4.8.1-1
    • 4.8.1-2
    • 4.8.1-4
    • 5.1.0-1
    • 5.2.1+dfsg-1
    • 5.3.0+dfsg-1
    • 5.4.0+dfsg-1
    • 5.4.1+dfsg-1
    • 5.4.2+dfsg-1
    • 5.4.3+dfsg-1
    • 5.4.4+dfsg-1
    • 6.0.0-1
    • 6.0.1-1
    • 6.0.2-1
    • 6.1.0-1
    • 6.1.1-1
    • 6.1.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • adminer Debian:13

    Versions
    • 5.2.1+dfsg-1
    • 5.3.0+dfsg-1
    • 5.4.0+dfsg-1
    • 5.4.1+dfsg-1
    • 5.4.2+dfsg-1
    • 5.4.3+dfsg-1
    • 5.4.4+dfsg-1
    • 6.0.0-1
    • 6.0.1-1
    • 6.0.2-1
    • 6.1.0-1
    • 6.1.1-1
    • 6.1.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • adminer Debian:14

    Versions
    • 5.2.1+dfsg-1
    • 5.3.0+dfsg-1
    • 5.4.0+dfsg-1
    • 5.4.1+dfsg-1
    • 5.4.2+dfsg-1
    Affected ranges
    • ECOSYSTEM: < 5.4.3+dfsg-1

    Update to 5.4.3+dfsg-1

  • adminer Ubuntu:Pro:16.04:LTS

    Versions
    • 4.2.1-1
    • 4.2.1-1ubuntu1
    • 4.2.1-1ubuntu1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • adminer Ubuntu:Pro:18.04:LTS

    Versions
    • 4.3.1-2
    • 4.5.0-1
    • 4.6.1-1
    • 4.6.2-1
    • 4.6.2-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • adminer Ubuntu:Pro:20.04:LTS

    Versions
    • 4.7.2-1
    • 4.7.4-1
    • 4.7.5-1
    • 4.7.6-1
    • 4.7.6-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • adminer Ubuntu:22.04:LTS

    Versions
    • 4.7.9-2
    • 4.8.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • adminer Ubuntu:24.04:LTS

    Versions
    • 4.8.1-1
    • 4.8.1-1ubuntu1
    • 4.8.1-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • adminer Ubuntu:26.04:LTS

    Versions
    • 5.2.1+dfsg-1
    • 5.3.0+dfsg-1
    • 5.4.0+dfsg-1
    • 5.4.1+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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