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CVE-2026-34728

CVE-2026-34728 · phpMyFAQ: Path Traversal - Arbitrary File Deletion in MediaBrowserController

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

phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, the MediaBrowserController::index() method handles file deletion for the media browser. When the fileRemove action is triggered, the user-supplied name parameter is concatenated with the base upload directory path without any path traversal validation. The FILTER_SANITIZE_SPECIAL_CHARS filter only encodes HTML special characters (&, ', ", <, >) and characters with ASCII value < 32, and does not prevent directory traversal sequences like ../. Additionally, the endpoint does not validate CSRF tokens, making it exploitable via CSRF attacks. This issue has been patched in version 4.1.1.

CVSS 8.7 · High · EPSS 0.7% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • phpmyfaq

    Versions
    • < 4.1.1: Affected

    No fix published

  • phpmyfaq/phpmyfaq Packagist

    Versions
    • 2.10.0-alpha
    • 2.8.0
    • 2.8.0-RC
    • 2.8.0-RC2
    • 2.8.0-RC3
    • 2.8.0-RC4
    • 2.8.0-alpha2
    • 2.8.0-alpha3
    • 2.8.0-beta
    • 2.8.0-beta2
    • 2.8.0-beta3
    • 2.8.1
    • 2.8.10
    • 2.8.11
    • 2.8.12
    • 2.8.13
    • 2.8.14
    • 2.8.15
    • 2.8.16
    • 2.8.17
    • 2.8.18
    • 2.8.19
    • 2.8.2
    • 2.8.20
    • 2.8.21
    • 2.8.22
    • 2.8.23
    • 2.8.24
    • 2.8.25
    • 2.8.26
    • 2.8.27
    • 2.8.28
    • 2.8.29
    • 2.8.3
    • 2.8.4
    • 2.8.5
    • 2.8.6
    • 2.8.7
    • 2.8.8
    • 2.8.9
    • 2.9.0
    • 2.9.0-alpha
    • 2.9.0-alpha2
    • 2.9.0-alpha3
    • 2.9.0-alpha4
    • 2.9.0-beta
    • 2.9.0-beta2
    • 2.9.0-rc
    • 2.9.0-rc2
    • 2.9.0-rc3
    • 2.9.0-rc4
    • 2.9.1
    • 2.9.10
    • 2.9.11
    • 2.9.12
    • 2.9.13
    • 2.9.2
    • 2.9.3
    • 2.9.4
    • 2.9.5
    • 2.9.6
    • 2.9.7
    • 2.9.8
    • 2.9.9
    • 3.0.0
    • 3.0.0-RC
    • 3.0.0-RC.2
    • 3.0.0-alpha
    • 3.0.0-alpha.2
    • 3.0.0-alpha.3
    • 3.0.0-alpha.4
    • 3.0.0-beta
    • 3.0.0-beta.2
    • 3.0.0-beta.3
    • 3.0.1
    • 3.0.10
    • 3.0.11
    • 3.0.12
    • 3.0.2
    • 3.0.3
    • 3.0.4
    • 3.0.5
    • 3.0.6
    • 3.0.7
    • 3.0.8
    • 3.0.9
    • 3.1.0
    • 3.1.0-RC
    • 3.1.0-alpha
    • 3.1.0-alpha.2
    • 3.1.0-alpha.3
    • 3.1.0-beta
    • 3.1.1
    • 3.1.10
    • 3.1.11
    • 3.1.12
    • 3.1.13
    • 3.1.14
    • 3.1.15
    • 3.1.16
    • 3.1.17
    • 3.1.18
    • 3.1.2
    • 3.1.3
    • 3.1.4
    • 3.1.5
    • 3.1.6
    • 3.1.7
    • 3.1.8
    • 3.1.9
    • 3.2.0
    • 3.2.0-RC
    • 3.2.0-RC.2
    • 3.2.0-RC.4
    • 3.2.0-alpha
    • 3.2.0-beta
    • 3.2.0-beta.2
    • 3.2.1
    • 3.2.10
    • 3.2.2
    • 3.2.3
    • 3.2.4
    • 3.2.5
    • 3.2.6
    • 3.2.7
    • 3.2.8
    • 3.2.9
    • 4.0.0
    • 4.0.0-RC
    • 4.0.0-RC.2
    • 4.0.0-RC.3
    • 4.0.0-RC.4
    • 4.0.0-RC.5
    • 4.0.0-alpha
    • 4.0.0-alpha.2
    • 4.0.0-alpha.3
    • 4.0.0-alpha.4
    • 4.0.0-beta
    • 4.0.0-beta.2
    • 4.0.1
    • 4.0.10
    • 4.0.11
    • 4.0.12
    • 4.0.13
    • 4.0.14
    • 4.0.15
    • 4.0.16
    • 4.0.18
    • 4.0.19
    • 4.0.2
    • 4.0.3
    • 4.0.4
    • 4.0.5
    • 4.0.6
    • 4.0.7
    • 4.0.8
    • 4.0.9
    • 4.1.0
    • 4.1.0-RC
    • 4.1.0-RC.2
    • 4.1.0-RC.4
    • 4.1.0-RC.5
    • 4.1.0-RC.6
    • 4.1.0-RC.7
    • 4.1.0-alpha
    • 4.1.0-alpha.2
    • 4.1.0-alpha.3
    • 4.1.0-beta
    • 4.1.0-beta.2
    Affected ranges
    • ECOSYSTEM: < 4.1.1

    Update to 4.1.1

Original sources

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