What is CVE-2026-64873?

CVE-2026-64873 is a critical-severity vulnerability in Regularlabs.com Cache Cleaner Pro Extension For Joomla, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.8/10. Published 2026-07-23.

How severe is CVE-2026-64873?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SSRF in Regularlabs.com Cache Cleaner Pro Extension For Joomla

CVE-2026-64873

Joomla Extension - regularlabs.com - SSRF in Cache Cleaner Pro extension - Custom query URLs could access internal or reserved network services.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.003 (18.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Regularlabs.com Cache Cleaner Pro Extension For Joomla — versions 1.0.0-9.7.6

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security@joomla.org (product)

Frequently asked questions

What is CVE-2026-64873?: CVE-2026-64873 is a critical-severity vulnerability in Regularlabs.com Cache Cleaner Pro Extension For Joomla, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.8/10. Published 2026-07-23.
How severe is CVE-2026-64873?: Critical severity. CVSS v3 base score is 9.8 out of 10.