FileManager Deserialization of Untrusted Data vulnerability
CVE-2024-52306GHSA-8237-957h-h2c2
What to do
Vendor fix available. Upgrade each affected package to the fixed version on its release line (backpack/filemanager 3.0.9, 2.0.2), redeploy, then verify what is actually installed.
This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.
Affected packages
Packagist backpack/filemanager
- Affected
- >= 3.0.0, < 3.0.9< 2.0.2
- Fixed in
- 3.0.9, 2.0.2
Sources
- GitHub Advisory Database and maintainer security advisories on GitHub
GitHub-reviewed advisory GHSA-8237-957h-h2c2 lists affected ranges: Packagist backpack/filemanager >=3.0.0 =0 <2.0.2
VerifiedObserved Structured GitHub Advisory Database record (type=reviewed) from the GitHub REST API.
Severity and exploitation
- Exploitation
- No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
- CVSS 4.0
- 8.5 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N · score source
- EPSS
- CVE-2024-52306: 0.63% estimated exploitation activity in the next 30 days; percentile 50.02 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description
As published by the source; long descriptions are shortened.
Impact Deserialization of untrusted data from the mimes parameter could lead to remote code execution. Patches Fixed in 3.0.9 Workarounds Not needed, a composer update will solve it in a non-breaking way. References Reported responsibly Vladislav Gladkiy at Positive Technologies.
Dates and revisions
- Published by the source
- Last modified by the source
- Source last checked
- Revision 1 · created ·
Published from ghsa record GHSA-8237-957h-h2c2
Agent brief
Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.
# Patch Next advisory brief: CVE-2024-52306 Advisory: FileManager Deserialization of Untrusted Data vulnerability IDs: CVE-2024-52306, GHSA-8237-957h-h2c2 Record: https://patchnext.com/advisories/cve-2024-52306 (revision 1, source checked 26 Oct 2026, 14:28 UTC) Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected. Severity: High (CVSS 8.5) Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV. Vendor response: Vendor fix available; fixed versions by package: backpack/filemanager 3.0.9, 2.0.2. A vendor fix does not mean a deployment is fixed. ## Affected components - Packagist backpack/filemanager: affected >= 3.0.0, < 3.0.9; < 2.0.2; fixed in 3.0.9, 2.0.2 ## Suggested inspection (read-only) - Packagist backpack/filemanager: check the installed version with your package manager. ## Supported action Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version. ## Required regression checks - Run the test suite and a production build. - Exercise the features that depend on backpack/filemanager. - Repeat the inspection and confirm that only fixed versions remain installed. ## Rollback considerations - Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward. ## Unresolved questions - Which deployments run an affected version? - Exploitation status can change. Check again before lowering the priority. - Mark the work resolved only after the fixed version is verified in production. ## Sources - Verified: https://github.com/advisories/GHSA-8237-957h-h2c2 (GitHub-reviewed advisory GHSA-8237-957h-h2c2 lists affected ranges: Packagist backpack/filemanager >=3.0.0 =0 <2.0.2) Commands are suggestions: review each one before running it.
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