Improper access control in tassos.gr Novarain/Tassos Framework
Priority MEDIUM 46CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01753 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| tassos.gr | Novarain/Tassos Framework (plg_system_nrframework) | 4.10.14–6.0.37 | — | No fix listed | CNA |
| tassos.gr | Convert Forms | 3.2.12–5.1.0 | — | No fix listed | CNA |
| tassos.gr | EngageBox | 6.0.0–7.1.0 | — | No fix listed | CNA |
| tassos.gr | Google Structured Data | 5.1.7–6.1.0 | — | No fix listed | CNA |
| tassos.gr | Advanced Custom Fields | 2.2.0–3.1.0 | — | No fix listed | CNA |
| tassos.gr | Smile Pack | 1.0.0–2.1.0 | — | No fix listed | CNA |
- Novarain/Tassos Framework (plg_system_nrframework) Vendortassos.gr Affected 4.10.14–6.0.37 Fixed in — No fix listed CNA
- Convert Forms Vendortassos.gr Affected 3.2.12–5.1.0 Fixed in — No fix listed CNA
- EngageBox Vendortassos.gr Affected 6.0.0–7.1.0 Fixed in — No fix listed CNA
- Google Structured Data Vendortassos.gr Affected 5.1.7–6.1.0 Fixed in — No fix listed CNA
- Advanced Custom Fields Vendortassos.gr Affected 2.2.0–3.1.0 Fixed in — No fix listed CNA
- Smile Pack Vendortassos.gr Affected 1.0.0–2.1.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-21627
- 2026-10-03 Alias added: GHSA-wc6r-7g4j-c7x4
References
Other 1
More tassos.gr vulnerabilities
- TI-2026-53808 Joomla Extension - tassos.gr - Client-controlled validation bypass in Convert Forms… CVSS 4.0MEDIUM 6.9
- TI-2026-85549 Stored XSS in Advanced Custom Fields and Smile Pack for Joomla CVSS 4.0HIGH 7.5
- TI-2026-46852 Information disclosure in tassos.gr Convert Forms extension for Joomla CVSS 4.0HIGH 8.2
- TI-2026-85572 File deletion in tassos.gr Advanced Custom Fields for Joomla CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-21627 · CVE Program
- CVE-2026-21627 · NVD
- FIRST EPSS
- GHSA-wc6r-7g4j-c7x4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences