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CVE-2026-65712MediumCVSS 6.2CVE published 23 July 2026Added to mySites.guru 22 July 2026

Regular Labs CDN for Joomla (cdnforjoomla) <= 7.3.7 - Path Traversal and Credential Exposure

Regular Labs CDN for Joomla up to and including 7.3.7. CDN versioning could check file paths outside the site directory, exposing local file existence and modification metadata (CVE-2026-65712). Also affected by CVE-2026-63265, missing CSRF tokens and permission checks on the shared Regular Labs AJAX endpoints. Note the related Cache Cleaner issue CVE-2026-64874, where CDN credentials were exposed in administrator request URLs, is covered by the Cache Cleaner rule. Fixed in the Regular Labs security release of 22 July 2026 (8.0.0).

Is my site affected?

Affected
Regular Labs CDN up to and including 7.3.7
Fixed in
A release after 7.3.7
What to do
Update Regular Labs CDN to the newest release from the vendor. This flaw covers versions up to 7.3.7, so any later release is outside it.
Check whether your sites are affected

How CVE-2026-65712 is scored

The base metrics as CISA-ADP published them, and what each one means for a site running an affected version. Threat and environmental metrics are left out: they describe a moment or a particular install rather than the flaw.

6.2 Medium

CVSS 3.1, scored by CISA-ADP
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

How it is reached

AV:L Attack vector
Local. Needs local access to the host
AC:L Attack complexity
Low. Nothing to work around, it just works
PR:N Privileges required
None. No account needed
UI:N User interaction
None. Nobody has to be tricked into anything
S:U Scope
Unchanged. Contained to the extension it is in

What it does

C:H Confidentiality
High. Everything the site holds can be read
I:N Integrity
None. Nothing can be altered
A:N Availability
None. The site stays up

Timeline

  1. 22 July 2026mySites.guru check added for Regular Labs CDN (up to and including 7.3.7)
  2. 22 July 2026We published: Regular Labs Patched Its Whole Joomla Extension Catalogue at Once
  3. 23 July 2026CVE-2026-65712 record published by its CNA

Rule details

Our disclosure post

Regular Labs Patched Its Whole Joomla Extension Catalogue at Once

Regular Labs Patched Its Whole Joomla Extension Catalogue at Once

Regular Labs shipped a security-hardening update across its Joomla extension range on 22 July 2026: SSRF, command injection, stored XSS and more. No CVEs.

Other vulnerabilities in Regular Labs CDN

Updating for CVE-2026-65712 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

Regular Labs CDN

References

CVE-2026-65712 questions

Which versions are affected by CVE-2026-65712?
CVE-2026-65712 affects Regular Labs CDN up to and including 7.3.7.
How do I fix CVE-2026-65712?
Update Regular Labs CDN to the newest release from the vendor. This flaw covers versions up to 7.3.7, so any later release is outside it.
How severe is CVE-2026-65712?
CISA-ADP scores it 6.2 (Medium) under CVSS 3.1. In plain terms: needs local access to the host, no account needed and nobody has to be tricked into anything.

Running an affected version on a site you manage?

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This check is part of the mySites.guru Joomla vulnerability scanner, which reads every installed extension's version on each audit. Browse the rest of the Joomla vulnerability database.

Rules current as of 5 October 2026.