Affected versions: ≤ 13.0.0
Full advisory: our disclosure post
CVE-2026-63683HighCVSS 7.5CVE published 22 July 2026Added to mySites.guru 22 July 2026
Regular Labs Content Templater (com_contenttemplater) <= 13.0.0 - Broken Access Control and Stored XSS
Regular Labs Content Templater up to and including 13.0.0. 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-2026-63265 (Regular Labs AJAX endpoints). Fixed in the Regular Labs security release of 22 July 2026 (14.0.0).
Is my site affected?
CVE-2026-63683 is checked by 3 rules. Find the extension and release line your site runs:
| Extension | Affected versions | Fixed in | What to do |
|---|---|---|---|
| Content Templater | up to and including 13.0.0 | after 13.0.0 | Update Content Templater to the newest release from the vendor. This flaw covers versions up to 13.0.0, so any later release is outside it. |
| Advanced Module Manager | up to and including 11.0.1 | after 11.0.1 | Update Advanced Module Manager to the newest release from the vendor. This flaw covers versions up to 11.0.1, so any later release is outside it. |
| Conditional Content | up to and including 6.0.0 | after 6.0.0 | Update Conditional Content to the newest release from the vendor. This flaw covers versions up to 6.0.0, so any later release is outside it. |
How CVE-2026-63683 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-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NHow 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:N Confidentiality
- None. Nothing can be read
- I:H Integrity
- High. Data and files can be altered at will
- 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
- 22 July 2026CVE-2026-63683 record published by its CNA
- 22 July 2026mySites.guru check added for Content Templater (up to and including 13.0.0)
- 22 July 2026mySites.guru check added for Advanced Module Manager (up to and including 11.0.1)
- 22 July 2026mySites.guru check added for Conditional Content (up to and including 6.0.0)
- 22 July 2026We published: Regular Labs Patched Its Whole Joomla Extension Catalogue at Once
Rule details
Advanced Module Manager - Regular Labs Advanced Module Manager (com_advancedmodules) <= 11.0.1 - Broken Access Control, Stored XSS and GeoIP Rule Bypass
Regular Labs Advanced Module Manager up to and including 11.0.1, via the bundled Conditions component and the shared Regular Labs library. Conditions administration did not consistently enforce tokens and component/mapped-item permissions (CVE-2026-63280); stored condition values could execute HTML/JavaScript in administrator summaries (CVE-2026-63281); IP and GeoIP conditions trusted spoofable forwarded headers, letting a remote client bypass location-based display rules (CVE-2026-63683); and privileged Regular Labs AJAX endpoints did not consistently require valid CSRF tokens or matching permissions (CVE-2026-63265). Fixed in the Regular Labs security release of 22 July 2026 (12.0.0).
Affected versions: ≤ 11.0.1
Full advisory: our disclosure post
Conditional Content - Regular Labs Conditional Content (conditionalcontent) <= 6.0.0 - Broken Access Control, Stored XSS and GeoIP Rule Bypass
Regular Labs Conditional Content up to and including 6.0.0, via the bundled Conditions component and the shared Regular Labs library. Conditions administration did not consistently enforce tokens and component/mapped-item permissions (CVE-2026-63280); stored condition values could execute HTML/JavaScript in administrator summaries (CVE-2026-63281); IP and GeoIP conditions trusted spoofable forwarded headers (CVE-2026-63683); Smart Search indexing could store restricted content in the public index (CVE-2026-64792); and the Regular Labs AJAX endpoints lacked consistent CSRF and permission checks (CVE-2026-63265). Fixed in the Regular Labs security release of 22 July 2026 (7.0.0).
Affected versions: ≤ 6.0.0
Full advisory: our disclosure post
Our disclosure post
Other vulnerabilities in Content Templater, Advanced Module Manager and Conditional Content
Updating for CVE-2026-63683 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extensions.
Content Templater
Latest safe version: 14.2.0
- CVE-2026-85188 Medium, from 14.0.0 up to but not including 14.2.0
- CVE-2026-63684 Medium, up to and including 13.0.0
- CVE-2026-63280 Medium, up to and including 13.0.0
- CVE-2026-63281 Medium, up to and including 13.0.0
Advanced Module Manager
Latest safe version: 12.1.0
- CVE-2026-85188 Medium, from 12.0.0 up to but not including 12.1.0
- CVE-2026-63280 Medium, up to and including 11.0.1
- CVE-2026-63281 Medium, up to and including 11.0.1
- CVE-2026-63265 Medium, up to and including 11.0.1
Conditional Content
Latest safe version: 8.0.0
- CVE-2026-85192 Critical, from 7.0.0 up to but not including 8.0.0
- CVE-2026-85188 Critical, from 7.0.0 up to but not including 8.0.0
- CVE-2026-63280 Medium, up to and including 6.0.0
- CVE-2026-63281 Medium, up to and including 6.0.0
- CVE-2026-64792 Medium, up to and including 6.0.0
References
- CVE-2026-63683 on cve.org (the official CVE record)
- CVE-2026-63683 in the NIST National Vulnerability Database
- Regular Labs Patched Its Whole Joomla Extension Catalogue at Once
CVE-2026-63683 questions
Which versions are affected by CVE-2026-63683?
CVE-2026-63683 is covered by 3 rules: Content Templater up to and including 13.0.0; Advanced Module Manager up to and including 11.0.1; Conditional Content up to and including 6.0.0.
How do I fix CVE-2026-63683?
It depends on the extension and release line your site runs. For Content Templater up to and including 13.0.0: update Content Templater to the newest release from the vendor. This flaw covers versions up to 13.0.0, so any later release is outside it. For Advanced Module Manager up to and including 11.0.1: update Advanced Module Manager to the newest release from the vendor. This flaw covers versions up to 11.0.1, so any later release is outside it. For Conditional Content up to and including 6.0.0: update Conditional Content to the newest release from the vendor. This flaw covers versions up to 6.0.0, so any later release is outside it.
How severe is CVE-2026-63683?
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?
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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.