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Not in CISA KEV
HIGH severity

CVE-2026-54178 — backpack/crud

HIGHFix: Laravel-Backpack/CRUD@0c7e095

CVE-2026-54178 is a high-severity (CVSS 8.1) Path Traversal vulnerability in backpack/crud. A fix is available for backpack/crud — see the affected versions and patch details below.

backpack/crud: Arbitrary file deletion via attacker-controlled clear_<attr>[] in HasUploadFields::uploadMultipleFilesToDisk

Also known asGHSA-8xjm-wqrp-2f25
Published
Updated
Affected
3 pkgs
Patched
2 / 3
Exploits
None indexed
Exploitation data as of Oct 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-54178.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs45th percentile — riskier than 45% of all scored CVEsHighest risk
0.06%0.40%0.73%1.06%0.6%0.6%Oct 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-54178 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 382,621 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

3 pkgs affected
🐘backpack/crud🐘backpack/crud🐘backpack/crud

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Summary

HasUploadFields::uploadMultipleFilesToDisk (in src/app/Models/Traits/HasUploadFields.php) reads file paths from the clear_<attribute>[] request input and deletes them from the configured storage disk without verifying that the paths belong to the current model record.

An authenticated user with Update access on any CRUD that wires uploadMultipleFilesToDisk as a model mutator (the pattern documented in the v5.x upload_multiple field guide) can supply arbitrary disk-relative paths in clear_<attr>[] to delete files that were never associated with the record they are editing.

The safe pattern already exists in the codebase: src/app/Library/Uploaders/MultipleFiles.php intersects the requested deletions against the files currently stored in the database column before calling Storage::disk()->delete(). The trait method lacks that intersection.

Affected code

  • src/app/Models/Traits/HasUploadFields.php — uploadMultipleFilesToDisk (primary sink)
  • src/app/Models/Traits/CrudTrait.php — mixes HasUploadFields into all Backpack-managed models

The vulnerability is present in all 5.x, 6.x < 6.8.12, and 7.x < 7.0.35 releases.

Impact

An attacker with low-privilege Backpack admin access (e.g. a content editor) can delete any file under the configured disk root: other records' attachments, shared assets, or files placed on the same disk for operational purposes. No confidentiality impact (files cannot be read, only deleted).

CWE-285 (Authorization Bypass) / CWE-639 (IDOR on file deletion)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H = 8.1 High

Fix

Intersect $files_to_clear against the filenames currently persisted on the model before calling delete(), mirroring the logic already present in MultipleFiles::uploadFiles. Fixed in 6.8.12 and 7.0.35.

Deployments still using the uploadMultipleFilesToDisk mutator pattern from the v5.x docs should migrate to the Uploader API (MultipleFiles::class via config/backpack/crud.php), which applies the safe intersection automatically.

Credits

Reported by Vishal Shukla (@shukla304).

Affected Packages

3 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistbackpack/crud≥ 5.0.0No fix
🐘Packagistbackpack/crud≥ 6.0.0&&< 6.8.126.8.12composer require backpack/crud:^6.8.12
🐘Packagistbackpack/crud≥ 7.0.0&&< 7.0.357.0.35composer require backpack/crud:^7.0.35

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for backpack/crud, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    No patched version of backpack/crud has shipped for CVE-2026-54178 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

## Summary `HasUploadFields::uploadMultipleFilesToDisk` (in `src/app/Models/Traits/HasUploadFields.php`) reads file paths from the `clear_<attribute>[]` request input and deletes them from the configured storage disk **without verifying that the paths belong to the current model record**. An authenticated user with Update access on any CRUD that wires `uploadMultipleFilesToDisk` as a model mutator (the pattern documented in the v5.x `upload_multiple` field guide) can supply arbitrary disk-relative paths in `clear_<attr>[]` to delete files that were never associated with the record they are e
O3 Security · Impact-Aware SCA

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CVE-2026-54178: Fixed in 6.8.12 (High 8.1) | O3 Security