Affected versions: ≥ 4.10.14 and ≤ 6.0.37
Full advisory: our disclosure post
CVE-2026-21627CriticalCVSS 9.5CVE published 20 February 2026Added to mySites.guru 30 March 2026
Novarain/Tassos Framework (nrframework) 4.10.14 - 6.0.37 - CVE-2026-21627 (CVSS 9.5) Unauthenticated File Inclusion, File Deletion, and SQL Injection
The Novarain/Tassos Framework plugin (plg_system_nrframework) for Joomla is vulnerable to unauthenticated arbitrary PHP file inclusion, arbitrary file read and deletion, and SQL injection via the com_ajax endpoint. No login is required. A public exploit is available on GitHub. This plugin is a hidden dependency installed automatically by Convert Forms, EngageBox, Google Structured Data, Advanced Custom Fields, and Smile Pack. Update to nrframework 6.0.38 or later immediately. CVE-2026-48906: additional unauthenticated arbitrary file deletion in the framework plugin (affected 1.0.0-6.0.1); covered by this >= 4.10.14 rule for all current builds.
Is my site affected?
- Affected
- Novarain/Tassos Framework from 4.10.14 up to and including 6.0.37
- Fixed in
- Update to 6.0.38 or later
- What to do
- Update Novarain/Tassos Framework to 6.0.38 or later.
How CVE-2026-21627 is scored
The base metrics as Joomla CNA 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.
9.5 Critical
CVSS 4.0, scored by Joomla CNACVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HHow it is reached
- AV:N Attack vector
- Network. Reachable across the internet
- AC:H Attack complexity
- High. The attacker has to defeat a mitigation first
- AT:P Attack requirements
- Present. Needs a particular deployment or race to line up
- PR:N Privileges required
- None. No account needed
- UI:N User interaction
- None. Nobody has to be tricked into anything
What it does to the site
- VC:H Confidentiality
- High. Everything the site holds can be read
- VI:H Integrity
- High. Data and files can be altered at will
- VA:H Availability
- High. The site can be taken down
What it does beyond the site
- SC:H Confidentiality
- High. Data on other systems can be read
- SI:H Integrity
- High. Other systems can be altered
- SA:H Availability
- High. Other systems can be taken down
Timeline
- 20 February 2026CVE-2026-21627 record published by its CNA
- 30 March 2026mySites.guru check added for Novarain/Tassos Framework (from 4.10.14 up to and including 6.0.37)
- 30 March 2026We published: Novarain Framework Vulnerability: Check Your Joomla Sites for nrframework
Rule details
Our disclosure post
Other vulnerabilities in Novarain/Tassos Framework
Updating for CVE-2026-21627 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.
References
- CVE-2026-21627 on cve.org (the official CVE record)
- CVE-2026-21627 in the NIST National Vulnerability Database
- Novarain Framework Vulnerability: Check Your Joomla Sites for nrframework
CVE-2026-21627 questions
Which versions are affected by CVE-2026-21627?
CVE-2026-21627 affects Novarain/Tassos Framework from 4.10.14 up to and including 6.0.37.
How do I fix CVE-2026-21627?
Update Novarain/Tassos Framework to 6.0.38 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-21627?
Joomla CNA scores it 9.5 (Critical) under CVSS 4.0. 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 11 November 2026.