What is CVE-2026-40384?

CVE-2026-40384 is a high-severity vulnerability in Joomla Joomla\!, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-05-26.

How severe is CVE-2026-40384?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Joomla Joomla\!

CVE-2026-40384

An improper validation of the search parameter of the com_media files API endpoint leads to a path traversal vulnerability.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-05-26 · last modified 2026-07-24.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Affected products

Joomla Joomla\!
Joomla! Project Cms — versions 4.0.0-5.4.5, 6.0.0-6.1.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

developer.joomla.org/security-centre/1042-20260510-core-path-traversal-in-com-m… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-40384?: CVE-2026-40384 is a high-severity vulnerability in Joomla Joomla\!, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-05-26.
How severe is CVE-2026-40384?: High severity. CVSS v3 base score is 7.5 out of 10.