CVE-2026-64874 regularlabs.com CVE debrief

Who should care

Administrators of Joomla installations using the Cache Cleaner Pro extension from regularlabs.com should verify their CDN credentials and take necessary actions to secure them. This includes reviewing the current state of their systems, assessing potential exposure, and implementing compensating controls if necessary. Security teams and vulnerability management teams should also be aware of this issue and prioritize remediation efforts accordingly.

Technical summary

The Cache Cleaner Pro extension for Joomla exposed CDN credentials in administrator request URLs, potentially allowing unauthorized access to sensitive data. The vulnerability has a CVSS score of 9.8 and is classified as CRITICAL. This issue may impact administrators who have not properly secured their CDN credentials, and they should verify and rotate these credentials as a precautionary measure.

Defensive priority

High

Recommended defensive actions

• Verify and rotate CDN credentials
• Restrict access to administrator request URLs
• Monitor for suspicious activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further investigation is needed to determine the full scope of the issue. The lack of detailed information may hinder defenders' ability to assess and mitigate the vulnerability effectively. Additional research into the Cache Cleaner Pro extension and its handling of CDN credentials may be necessary to fully understand the vulnerability.

Official resources