Quick answers
- Is CVE-2026-64872 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-64872 being exploited in the wild.
- How severe is CVE-2026-64872?
- Informational severity, published 23 July 2026.
- Which products and versions are affected?
- Joomla! Joomla\! 1.0.0 through 9.7.6; Regular Labs Cache Cleaner Pro 1.0.0 through 9.7.6.
- Is there a fix for CVE-2026-64872?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-64872 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-64872?
- Check whether you run Joomla! Joomla\! or Regular Labs Cache Cleaner Pro at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A path traversal vulnerability (CWE-22) exists in the Regular Labs Cache Cleaner Pro extension for Joomla versions 1.0.0 through 9.7.6. The issue stems from improper validation of user-supplied input when defining custom purge and log paths, allowing these paths to resolve to locations outside of the intended webroot directory. An attacker with sufficient privileges to modify extension settings could exploit this to read or potentially delete files elsewhere on the server filesystem. The vulnerability was reported by the Joomla! Project and affects the Pro version of the extension.
Affected products
- Regular Labs Cache Cleaner Pro extension for Joomla 1.0.0 through 9.7.6
Timeline
- 2026-07-23: disclosed
- 2026-07-23: advisory