Quick answers
- Is CVE-2026-64873 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-64873 being exploited in the wild.
- How severe is CVE-2026-64873?
- Informational severity, with a CVSS score of 0, published 23 July 2026.
- Which products and versions are affected?
- Regular Labs Cache Cleaner Pro 1.0.0-9.7.6.
- Is there a fix for CVE-2026-64873?
- 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-2026-64873 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-64873?
- Check whether you run 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 Server-Side Request Forgery (SSRF) vulnerability exists in the Regular Labs Cache Cleaner Pro extension for Joomla (versions 1.0.0 through 9.7.6). The flaw is located in the handling of custom query URLs, which do not sufficiently validate user-supplied input. An attacker can exploit this by providing a malicious URL that forces the server to make requests to internal or reserved network services. This can be used to bypass firewalls, scan internal networks, or access metadata services in cloud environments. The vulnerability is tracked as CWE-918.
Affected products
- Regular Labs Cache Cleaner Pro extension for Joomla 1.0.0-9.7.6
Timeline
- 2026-07-23: disclosed: CVE-2026-64873 published by the Joomla! Project