TI-2026-10494 Aliases CVE-2026-12202 GHSA-wrcg-234w-hfhq

Intelliants Subrion CMS Blocks Endpoint cross site scripting

MEDIUM 55CWE-79Published 2026-06-15 · Updated 2026-06-16

Key facts

Attack vector: Network
Privileges required: High
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting, Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79 and CWE-94.

Summary

A vulnerability has been found in Intelliants Subrion CMS up to 4.0.3. Affected by this issue is some unknown functionality of the component Blocks Endpoint. Such manipulation of the argument CSS class name leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00214 11th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

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
Intelliants	Subrion CMS	4.0.0; 4.0.1; 4.0.2; 4.0.3	—	No fix listed	CNA
—	intelliants/subrion (Packagist)	up to 4.0.3	—	No fix listed	GHSA-wrcg-234w-hfhq

Subrion CMS VendorIntelliants Affected 4.0.0; 4.0.1; 4.0.2; 4.0.3 Fixed in — No fix listed CNA
intelliants/subrion (Packagist) Vendor— Affected up to 4.0.3 Fixed in — No fix listed GHSA-wrcg-234w-hfhq

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:intelliants:subrion_cms::::::::	—	—	Intelliants

cpe:2.3:a:intelliants:subrion_cms:*:*:*:*:*:*:*:* Versions — — ·Intelliants

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-12202
2026-10-03 Alias added: GHSA-wrcg-234w-hfhq

References

Exploit 1

https://karinagante.github.io/cve-2026-12202/#proof-of-concept-poc

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-12202

Other 4

TI-2024-16725 Subrion CMS 4.2.1 is vulnerable to SQL Injection via ia.core.mysqli.php. CVSS 3.1CRITICAL 9.8
TI-2023-25347 Subrion 4.2.1 has a remote command execution vulnerability in the backend. CVSS 3.1HIGH 8.8
TI-2026-63862 Intelliants Subrion CMS actions.json assign-owner information disclosure CVSS 4.0MEDIUM 6.9
TI-2018-13753 /panel/uploads in Subrion CMS 4.2.1 allows remote attackers to execute arbitrary PHP code… CVSS 3.1HIGH 7.2
TI-2026-63863 Intelliants Subrion CMS Login Page login.php authorize redirect CVSS 4.0MEDIUM 5.3
TI-2025-43172 Multiple reflected cross-site scripting (XSS) vulnerabilities in the installation module… CVSS 3.1MEDIUM 6.1

See all 69 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences