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CVE-2026-90915

6.5 · MEDIUM

Joomla!

Published Sep 29, 2026joomlaCWE-22EPSS 0.34%

Overview

CVE-2026-90915 is a medium-severity vulnerability affecting joomla joomla\!. It was published on September 29, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from joomla. Update joomla\! to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
joomlajoomla\!>= 4.0.0, < 5.4.8Affected

References

Refdeveloper.joomla.org/security-centre/1085-20260905-core-arbitrary-directory-deletion-via-cache-purge-action.htmlRefwww.joomla.org/

How CyberStrike helps

Frequently asked questions

What is CVE-2026-90915?

CVE-2026-90915 is a medium-severity vulnerability affecting joomla joomla\!. It was published on September 29, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-90915?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-90915?

Check the references section for vendor advisories and patches from joomla. Update joomla\! to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-90915?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-90915 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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