CVE-2026-64871 Joomla Extension - regularlabs.com - Inconsistent CSRF token checks / privilege checks in Cache Cleaner extension

Medium 5.4 Published Updated

Attackers can bypass CSRF and privilege checks to purge administrator caches without proper authorization in the Joomla Cache Cleaner extension.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-64871?

CVE-2026-64871 is a medium-severity vulnerability in regularlabs.com Cache Cleaner extension for Joomla, published on 23 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Joomla Extension - regularlabs.com - Inconsistent CSRF token checks / privilege checks in Cache Cleaner extension - Administrator URL purges did not consistently require a valid token and cache-management permission.

Weakness: CWE-352, CWE-284

Which versions are affected by CVE-2026-64871?

How do I fix CVE-2026-64871?

No fix has been published for CVE-2026-64871 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-64871 being exploited?

There is no known exploitation of CVE-2026-64871 in the wild and no public exploit code.

Sources

Also known as GHSA-49jw-c4hx-66m6.

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