CVE-2021-23394

Remote Code Execution (RCE)

The package studio-42/elfinder before 2.1.58 are vulnerable to Remote Code Execution (RCE) via execution of PHP code in a .phar file. NOTE: This only applies if the server parses .phar files as PHP.

Affected

studio-42/elfinder

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 SNYK

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

18.93% chance of exploitation in the next 30 days, 97th percentile

Nuclei

high · CWE-434

Published

2021-06-13

Updated

2024-09-16

Proof-of-concept exploits (2)

• Studio-42/elFinder/issues/32954806★ · 2026-08-03
• 0xnemian/CVE-2021-233940★ · 2025-11-30

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-23394.yaml

Security advisories

• https://blog.sonarsource.com/elfinder-case-study-of-web-file-manager-vulnerabilities
• https://snyk.io/vuln/SNYK-PHP-STUDIO42ELFINDER-1290554
• advisories/GHSA-qm58-cvvm-c5qr

References

• CVE Record
• NVD entry