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CVE-2026-65754HighCVSS 7.5CVE published 23 July 2026Added to mySites.guru 22 July 2026

Regular Labs ReReplacer (com_rereplacer) <= 15.0.3 - Path Traversal, Broken Access Control and Stored XSS

Regular Labs ReReplacer up to and including 15.0.3. ReReplacer XML include paths could read files outside the site directory (CVE-2026-65754). Administrator actions, editor popups and import/export requests lacked consistent token, item-permission and input-validation checks (CVE-2026-63684). Via the bundled Conditions component it is also affected by CVE-2026-63280 (missing tokens/permissions in Conditions administration), CVE-2026-63281 (stored XSS in administrator summaries) and CVE-2026-63683 (spoofable IP/GeoIP condition headers), plus CVE-2026-64792 (Smart Search indexing rendering restricted content as the indexing administrator) and CVE-2026-63265 (Regular Labs AJAX endpoints). Fixed in the Regular Labs security release of 22 July 2026 (16.0.0).

Is my site affected?

Affected
ReReplacer up to and including 15.0.3
Fixed in
A release after 15.0.3
What to do
Update ReReplacer to the newest release from the vendor. This flaw covers versions up to 15.0.3, so any later release is outside it.
Check whether your sites are affected

How CVE-2026-65754 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.

7.5 High

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

How it is reached

AV:N Attack vector
Network. Reachable across the internet
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

The rule below is rated Medium for the set of 4 CVEs it covers together, not for this record on its own.

Timeline

  1. 22 July 2026mySites.guru check added for ReReplacer (up to and including 15.0.3)
  2. 22 July 2026We published: Regular Labs Patched Its Whole Joomla Extension Catalogue at Once
  3. 23 July 2026CVE-2026-65754 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 ReReplacer

Updating for CVE-2026-65754 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

ReReplacer

Latest safe version: 16.2.0

References

CVE-2026-65754 questions

Which versions are affected by CVE-2026-65754?
CVE-2026-65754 affects ReReplacer up to and including 15.0.3.
How do I fix CVE-2026-65754?
Update ReReplacer to the newest release from the vendor. This flaw covers versions up to 15.0.3, so any later release is outside it.
How severe is CVE-2026-65754?
CISA-ADP scores it 7.5 (High) under CVSS 3.1. In plain terms: reachable across the internet, no account needed and nobody has to be tricked into anything.

Running an affected version on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

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.