What is CVE-2026-41247?

CVE-2026-41247 is a critical-severity vulnerability in Std42 Elfinder, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-04-23.

How severe is CVE-2026-41247?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Std42 Elfinder

CVE-2026-41247

elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Prior to 2.1.67, elFinder contains a command injection vulnerability in the resize command. The bg (background color) parameter is accepted from user i…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.001 (26.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Std42 Elfinder
Studio-42 Elfinder — versions < 2.1.67

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

https://github.com/Studio-42/elFinder/security/advisories/GHSA-8q4h-8crm-5cvc (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-41247?: CVE-2026-41247 is a critical-severity vulnerability in Std42 Elfinder, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-04-23.
How severe is CVE-2026-41247?: Critical severity. CVSS v3 base score is 9.8 out of 10.