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HIGH severity

elFinder MySQL has a SQL Injection in its Volume Driver (elFinderVolumeMySQL)GHSA-c3gj-q88f-7hqj

HIGH

GHSA-c3gj-q88f-7hqj is a high-severity (CVSS 8.8) SQL Injection vulnerability in studio-42/elfinder. A fix is available for studio-42/elfinder — see the affected versions and patch details below.

Also known asCVE-2026-44521
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • 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 GHSA-c3gj-q88f-7hqj.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk-0.19%
Lower risk than most CVEs16th percentile — riskier than 16% of all scored CVEsHighest risk
0.00%0.31%0.62%0.94%0.0%0.2%0.4%0.2%Jun 26Oct 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘studio-42/elfinder

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

An authenticated SQL injection vulnerability in the elFinder MySQL volume driver (elFinderVolumeMySQL) allows any logged-in user, including users with read-only access to the affected volume, to inject SQL through a crafted target file hash. Successful exploitation can lead to unauthorized data disclosure and denial of service.

This vulnerability only affects installations configured to use the MySQL volume driver. Installations using the default LocalFileSystem driver are not affected.

Description

A vulnerability in elFinder's MySQL volume driver (elFinderVolumeMySQL) allows authenticated SQL injection through a crafted file hash passed via the target parameter.

The issue is caused by two behaviors working together:

  1. File hashes are decoded without validating that the decoded value is a valid MySQL object identifier.
  2. The decoded value is then used in MySQL driver queries, including cacheDir(), _joinPath(), _stat(), and _fopen().

Because the MySQL storage schema uses numeric id and parent_id values, an authenticated user can supply a crafted hash that alters the intended SQL query logic. Successful exploitation can lead to unauthorized data disclosure and denial of service. The extent of impact depends on the privileges granted to the configured MySQL account.

This vulnerability only affects installations configured to use the MySQL volume driver. Installations using the default LocalFileSystem driver are not affected.

Impact

An authenticated user, including a user with read-only access to the affected volume, can exploit this issue to:

  • disclose data accessible to the configured MySQL account, including file contents stored by the driver and database metadata
  • trigger denial of service through expensive or unexpectedly broad query results that can lead to excessive memory consumption

The severity of data exposure depends on the privileges granted to the configured MySQL account.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagiststudio-42/elfinderall versions2.1.68composer require studio-42/elfinder:^2.1.68

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for studio-42/elfinder, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update studio-42/elfinder to 2.1.68 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c3gj-q88f-7hqj is resolved across your whole dependency graph.

  3. Workarounds

    Until you can upgrade, make sure every query built from user input uses parameterised statements or a prepared-statement API rather than string concatenation, and reduce the database account's privileges so an injected query cannot read or alter data beyond what the feature needs.

Frequently Asked Questions

## Summary An authenticated SQL injection vulnerability in the elFinder MySQL volume driver (`elFinderVolumeMySQL`) allows any logged-in user, including users with read-only access to the affected volume, to inject SQL through a crafted `target` file hash. Successful exploitation can lead to unauthorized data disclosure and denial of service. This vulnerability only affects installations configured to use the `MySQL` volume driver. Installations using the default `LocalFileSystem` driver are not affected. ## Description A vulnerability in elFinder's MySQL volume driver (`elFinderVolumeMySQ
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elFinder MySQL has a SQL Injection in its Volume Driver…