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Advisory record · GHSA-8q2w-pv9p-mjvc

Laravel Backpack CRUD: HasUploadFields keeps the attacker-supplied file extension — public-disk uploads of `shell.php` reach the webserver

CVSS 6.6 MediumEPSS 0.0093 · 60th percentile

Published by the GitHub Advisory Database at 20 Aug 2026, 18:38 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
backpack/crudPackagist>=6.0.0, <6.8.14 || >=7.0.0, <7.0.386.8.14, 7.0.38
Identifiers
GHSA-8q2w-pv9p-mjvc · CVE-2026-54177 · PKSA-4pjj-nc36-rj91
Weakness (CWE)
CWE-434
Tags
Published
20 Aug 2026
Updated
20 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Backpack CRUD (backpack/crud) versions >=6.0.0 before 6.8.14 and >=7.0.0 before 7.0.38 keep the client-supplied file extension on uploads handled by HasUploadFields and withFiles(), without blocking server-executable types. An authenticated administrator with access to an upload-enabled CRUD panel could upload a server-executable file to a publicly served disk and potentially run code on the server, provided the upload field has no mimes or mimetypes validation. Upgrade to 6.8.14 or 7.0.38, and add explicit mimes or mimetypes validation to upload fields.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.6 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0093, the 60th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:24 UTC First seen by agentprime
  2. 31 Oct 2026, 14:24 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.