Affected versions: < 4.10.14
Full advisory: our disclosure post
CVE-2026-48906CriticalCVSS 9.3CVE published 27 May 2026Added to mySites.guru 27 May 2026
Novarain/Tassos Framework (nrframework) below 4.10.14 - CVE-2026-48906 Unauthenticated Arbitrary File Deletion
The Novarain/Tassos Framework plugin (plg_system_nrframework), a hidden dependency installed by Convert Forms, EngageBox, Google Structured Data, Advanced Custom Fields and Smile Pack, lets an unauthenticated visitor delete arbitrary files on the site (CVE-2026-48906, Joomla CNA, CVSS 4.0 9.3 Critical). The CVE record gives the framework range as starting at 1.0.0. Builds from 4.10.14 upward are covered by the separate CVE-2026-21627 framework rule; this row covers the older builds below it, which are years out of date. Update the framework (normally by updating the Tassos extension that installed it) to 6.0.38 or later.
Is my site affected?
CVE-2026-48906 is checked by 2 rules. Find the extension and release line your site runs:
| Extension | Affected versions | Fixed in | What to do |
|---|---|---|---|
| Novarain/Tassos Framework | before 4.10.14 | 4.10.14 | Update Novarain/Tassos Framework to 4.10.14 for this flaw, or to 6.0.38 or later, which no rule we check matches. |
| Novarain/Tassos Framework | from 4.10.14 up to and including 6.0.37 | update to 6.0.38 | Update Novarain/Tassos Framework to 6.0.38 or later. |
How CVE-2026-48906 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.
9.3 Critical
CVSS 4.0, scored by Joomla CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/AU:YHow it is reached
- AV:N Attack vector
- Network. Reachable across the internet
- AC:L Attack complexity
- Low. Nothing to work around, it just works
- AT:N Attack requirements
- None. Works against any affected install
- 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:N Confidentiality
- None. Nothing 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:N Confidentiality
- None. Other systems keep their data
- SI:H Integrity
- High. Other systems can be altered
- SA:H Availability
- High. Other systems can be taken down
Timeline
- 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
- 27 May 2026CVE-2026-48906 record published by its CNA
- 27 May 2026mySites.guru check added for Novarain/Tassos Framework (before 4.10.14)
Rule details
Novarain/Tassos Framework - 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.
Affected versions: ≥ 4.10.14 and ≤ 6.0.37
Full advisory: our disclosure post
Our disclosure post
Other vulnerabilities in Novarain/Tassos Framework
Updating for CVE-2026-48906 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.
Novarain/Tassos Framework
Latest safe version: 6.0.38
- CVE-2026-21627 Critical, from 4.10.14 up to and including 6.0.37
References
- CVE-2026-48906 on cve.org (the official CVE record)
- CVE-2026-48906 in the NIST National Vulnerability Database
- Novarain Framework Vulnerability: Check Your Joomla Sites for nrframework
CVE-2026-48906 questions
Which versions are affected by CVE-2026-48906?
CVE-2026-48906 is covered by 2 rules: Novarain/Tassos Framework before 4.10.14; Novarain/Tassos Framework from 4.10.14 up to and including 6.0.37.
How do I fix CVE-2026-48906?
It depends on the extension and release line your site runs. For Novarain/Tassos Framework before 4.10.14: update Novarain/Tassos Framework to 4.10.14 for this flaw, or to 6.0.38 or later, which no rule we check matches. For Novarain/Tassos Framework from 4.10.14 up to and including 6.0.37: update Novarain/Tassos Framework to 6.0.38 or later.
How severe is CVE-2026-48906?
Joomla CNA scores it 9.3 (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.