An issue was discovered in Subrion CMS v4.2.1 There is a stored cross-site scripting…
Priority LOW 25CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
An issue was discovered in Subrion CMS v4.2.1 There is a stored cross-site scripting (XSS) vulnerability that can execute malicious JavaScript code by modifying the name of the uploaded image, closing the html tag, or adding the onerror attribute.
Why it matters now
EPSS 0.00562 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | intelliants/subrion (Packagist) | up to 4.2.1 | — | No fix listed | GHSA-jvq4-cgfw-jgf4 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- intelliants/subrion (Packagist) Vendor— Affected up to 4.2.1 Fixed in — No fix listed GHSA-jvq4-cgfw-jgf4
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:intelliants:subrion_cms:4.2.1:*:*:*:*:*:*:* | 4.2.1 | Vulnerable | Intelliants |
- cpe:2.3:a:intelliants:subrion_cms:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·Intelliants
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-41502
- 2026-10-03 Alias added: GHSA-jvq4-cgfw-jgf4
References
More Intelliants Subrion Cms vulnerabilities
- 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-2025-43172 Multiple reflected cross-site scripting (XSS) vulnerabilities in the installation module… CVSS 3.1MEDIUM 6.1
- TI-2023-23544 Multiple Cross-Site Scripting (XSS) vulnerabilities in installation of Subrion CMS… CVSS 3.1MEDIUM 6.1
- TI-2022-21043 A cross-site scripting (XSS) vulnerability in the CMS Field Add page of Intelliants… CVSS 3.1MEDIUM 6.1
- TI-2017-08464 Subrion CMS before 4.1.5.10 has a SQL injection vulnerability in /front/search.php via the $_GET array. CVSS 3.0CRITICAL 9.8
- TI-2025-35369 An issue was discovered in Subrion CMS 4.2.1, allowing authenticated adminitrators or… CVSS 3.1LOW 3.8
Sources
- CVE-2021-41502 · CVE Program
- CVE-2021-41502 · NVD
- FIRST EPSS
- GHSA-jvq4-cgfw-jgf4 · GitHub Advisory Database · CC BY 4.0
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