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CVE-2026-54177

CVE-2026-54177 · backpack/crud: HasUploadFields keeps the attacker-supplied file extension — public-disk uploads of `shell.php` reach the webserver

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

backpack/crud provides Create, Read, Update & Delete (CRUD) functions for Backpack, a collection of Laravel packages that help users build custom administration panels. From 6.0.0 until 6.8.14 and 7.0.38, HasUploadFields methods uploadFileToDisk and uploadMultipleFilesToDisk, used through CrudTrait, and the withFiles() path through FileNameGenerator do not internally reject server-executable file types. An authenticated administrator can achieve remote code execution by using an upload-enabled CRUD field without mimes: and mimetypes: validation when the public disk is web-accessible through php artisan storage:link and the web-server and PHP-FPM configuration executes the stored extension. The legacy path preserves an accepted extension and the newer path derives an extension without blocking dangerous types. The package-level restriction is defense in depth and does not replace application-level upload validation. This issue is fixed in versions 6.8.14 and 7.0.38.

CVSS 6.6 · Medium · EPSS 0.9% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • crud

    Versions
    • >= 6.0.0, < 6.8.14: Affected
    • >= 7.0.0, < 7.0.38: Affected

    No fix published

  • backpack/crud Packagist

    Versions
    • 6.0.0
    • 6.0.1
    • 6.0.2
    • 6.0.3
    • 6.0.4
    • 6.0.5
    • 6.0.6
    • 6.0.7
    • 6.1.0
    • 6.1.1
    • 6.1.10
    • 6.1.11
    • 6.1.12
    • 6.1.13
    • 6.1.14
    • 6.1.15
    • 6.1.16
    • 6.1.2
    • 6.1.3
    • 6.1.4
    • 6.1.5
    • 6.1.6
    • 6.1.7
    • 6.1.8
    • 6.1.9
    • 6.2.0
    • 6.2.1
    • 6.2.2
    • 6.2.3
    • 6.2.4
    • 6.3.0
    • 6.3.1
    • 6.3.2
    • 6.4.0
    • 6.4.1
    • 6.4.2
    • 6.5.0
    • 6.5.1
    • 6.5.2
    • 6.5.3
    • 6.5.4
    • 6.5.5
    • 6.6.0
    • 6.6.1
    • 6.6.2
    • 6.6.3
    • 6.6.4
    • 6.6.5
    • 6.6.6
    • 6.7.0
    • 6.7.1
    • 6.7.10
    • 6.7.11
    • 6.7.12
    • 6.7.13
    • 6.7.14
    • 6.7.15
    • 6.7.16
    • 6.7.17
    • 6.7.18
    • 6.7.19
    • 6.7.2
    • 6.7.20
    • 6.7.21
    • 6.7.22
    • 6.7.23
    • 6.7.24
    • 6.7.25
    • 6.7.26
    • 6.7.27
    • 6.7.28
    • 6.7.29
    • 6.7.3
    • 6.7.30
    • 6.7.31
    • 6.7.32
    • 6.7.33
    • 6.7.34
    • 6.7.35
    • 6.7.36
    • 6.7.37
    • 6.7.38
    • 6.7.39
    • 6.7.4
    • 6.7.40
    • 6.7.41
    • 6.7.42
    • 6.7.43
    • 6.7.44
    • 6.7.45
    • 6.7.46
    • 6.7.47
    • 6.7.48
    • 6.7.49
    • 6.7.5
    • 6.7.50
    • 6.7.51
    • 6.7.52
    • 6.7.53
    • 6.7.54
    • 6.7.55
    • 6.7.56
    • 6.7.6
    • 6.7.7
    • 6.7.8
    • 6.7.9
    • 6.8.0
    • 6.8.1
    • 6.8.10
    • 6.8.11
    • 6.8.12
    • 6.8.13
    • 6.8.2
    • 6.8.3
    • 6.8.4
    • 6.8.5
    • 6.8.6
    • 6.8.7
    • 6.8.8
    • 6.8.9
    Affected ranges
    • ECOSYSTEM: ≥ 6.0.0, < 6.8.14

    Update to 6.8.14

  • backpack/crud Packagist

    Versions
    • 7.0.0
    • 7.0.1
    • 7.0.10
    • 7.0.11
    • 7.0.12
    • 7.0.13
    • 7.0.14
    • 7.0.15
    • 7.0.16
    • 7.0.17
    • 7.0.18
    • 7.0.19
    • 7.0.2
    • 7.0.20
    • 7.0.21
    • 7.0.22
    • 7.0.23
    • 7.0.24
    • 7.0.25
    • 7.0.26
    • 7.0.27
    • 7.0.28
    • 7.0.29
    • 7.0.3
    • 7.0.30
    • 7.0.31
    • 7.0.32
    • 7.0.33
    • 7.0.34
    • 7.0.35
    • 7.0.36
    • 7.0.37
    • 7.0.4
    • 7.0.5
    • 7.0.6
    • 7.0.7
    • 7.0.8
    • 7.0.9
    Affected ranges
    • ECOSYSTEM: ≥ 7.0.0, < 7.0.38

    Update to 7.0.38

Original sources

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