CVE-2026-90915

high

Description

Joomla! Core - [20260905] - Core - Arbitrary directory deletion via cache purge action in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 -An improper validation of the cache group name allowed path traverals in the file storage of the caching layer, resulting in arbitrary directory deletions.

References

https://www.joomla.org/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89088

https://developer.joomla.org/security-centre/1085-20260905-core-arbitrary-directory-deletion-via-cache-purge-action.html

Details

Source: Mitre, NVD

Published: 2026-09-29

Updated: 2026-09-30

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00325