Vulnerability · Published Feb 20, 2026 · Assigned by Joomla
CVE-2026-21627Extension - tassos.gr - SQL injection and Unauthenticated File Read in Novarain/Tassos Framework v4.10.14 – v6.0.37 for Joomla
Critical 9.5
In plain English
A critical-severity improper access control in Advanced Custom Fields from tassos.gr. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 4.0)9.5Critical
Exploit odds (30 days)1.8%top 22.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
The vulnerability was rooted in how the Tassos Framework plugin handled specific AJAX requests through Joomla’s com_ajax entry point. Under certain conditions, internal framework functionality could be invoked without proper restriction.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tassos.gr | Novarain/Tassos Framework (plg_system_nrframework) | 4.10.14–6.0.37 |
| tassos.gr | Convert Forms | 3.2.12–5.1.0 |
| tassos.gr | EngageBox | 6.0.0–7.1.0 |
| tassos.gr | Google Structured Data | 5.1.7–6.1.0 |
| tassos.gr | Advanced Custom Fields | 2.2.0–3.1.0 |
| tassos.gr | Smile Pack | 1.0.0–2.1.0 |
Weakness: CWE-284 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References
- https://tassos.gr product