Intelliants Subrion CMS up to 4.0.3 Blocks Endpoint CSS class name cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.2$0-$5k1.77

Summaryinfo

A vulnerability classified as problematic has been found in Intelliants Subrion CMS up to 4.0.3. This affects an unknown part of the component Blocks Endpoint. Performing a manipulation of the argument CSS class name results in cross site scripting. This vulnerability is known as CVE-2026-12202. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as problematic has been found in Intelliants Subrion CMS up to 4.0.3. This affects some unknown processing of the component Blocks Endpoint. The manipulation of the argument CSS class name with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity.

The weakness was published by Karina Gante. The advisory is shared at hackmd.io. This vulnerability is uniquely identified as CVE-2026-12202. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is shared for download at hackmd.io. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.4
VulDB Meta Temp Score: 2.2

VulDB Base Score: 2.4
VulDB Temp Score: 2.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/14/2026 Advisory disclosed
06/14/2026 +0 days VulDB entry created
06/14/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: hackmd.io
Researcher: Karina Gante
Status: Not defined

CVE: CVE-2026-12202 (🔒)
GCVE (CVE): GCVE-0-2026-12202
GCVE (VulDB): GCVE-100-370845
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/14/2026 13:52
Changes: 06/14/2026 13:52 (58)
Complete: 🔍
Submitter: karinagante
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #830013: Intelliants Subrion CMS 4.0.3 Cross Site Scripting (by karinagante)

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