CVE-2026-21627 | BDVDB-2026-316621 Detail

tassos.grNovarain/Tassos Framework (plg_system_nrframework)

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.

Impact#

CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

Weaknesses#

CWE-284 Improper Access Control

References#

https://tassos.gr

Exploit#

No public exploit known

History#

Version 12026-02-20Record published in the CVE List.
Version 22026-02-23Most recent update recorded in the CVE List.

Published

Published: 2026-02-20
Last modified: 2026-02-23

Vendor information

Vendor: tassos.gr
Product: Novarain/Tassos Framework (plg_system_nrframework)

All tassos.gr vulnerabilities

Score

9.5 Critical

EPSS

1.7%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 78.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Improper Access Control

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
4.10.14–6.0.37
Fixed
Not stated

Scoring System

CVSS v4.0

9.5 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Attack Requirements	Present
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	High
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	High

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).