Patch Forecast
Yellow warning
Plan into this sprint.

CVE-2026-90915

Joomla\!: path traversal

Risk score
44/100
CVSS
6.5 v3.1
Exploit chance (30 days)
0.3%
Published
29 Sep 2026

Open in the live forecast Today's forecast

What to know

What it is
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.
Affected
Joomla\!
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Story map

Story map: Joomla\!THE FLAWSTHE FIXCVE-2026-90915Path traversalCVSS 6.5 · EPSS 0%CVE-2026-92227Authentication bypassCVSS 7.5 · EPSS 0%CVE-2026-90906Cross-site scriptingCVSS 8.3 · EPSS 0%CVE-2026-92222Server-side request forgeryCVSS 8.0 · EPSS 0%FixApply the vendor's securityupdate; see the linked advisory.Who is exposedJoomla\!YELLOW · PLAN IT INJoomla\!Joomla! Core - [20260914] -Core - MFA AuthenticationBypass through remembermecookies in Joomla 4.0.0-5.4.8,6.0.0-6.1.3 - The prematureissuance of an remembermecookie leads to a MFA bypass…Where it standsNo known exploitationCONNECTS TOSame weaknessPath traversal (CWE-22)399 other warnings in 30 days →Same productEarlier Joomla\! warnings12 in the last 90 days →
Story map: the flaws, the fix, how it unfolded and what it connects to. Boxes link to the record or article.

At a glance

Joomla\!: Yellow, plan it in. Joomla! Core - [20260914] - Core - MFA Authentication Bypass through rememberme cookies in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The premature issuance of an rememberme cookie leads to a MFA bypass vulnerability.

The flaws

The fix

Fix: Apply the vendor's security update; see the linked advisory.

Who is exposed: Joomla\!

Where it stands

  • No known exploitation

Connects to

Why it is Yellow

  • CVSS 6.5 medium

References

Original 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.

Last activity 29 Sep 2026. Patch Forecast updates every hour.