A Remiote Code Execution (RCE) vulnerability exiss in Subrion CMS 4.2.1 via modified code…
Priority MEDIUM 41Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
A Remiote Code Execution (RCE) vulnerability exiss in Subrion CMS 4.2.1 via modified code in a background field; when the information is modified, the data in it will be executed through eval().
Why it matters now
EPSS 0.01415 72nd 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-g54x-29xv-58h5 |
- — 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-g54x-29xv-58h5
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-2021-43464
- 2026-10-03 Alias added: GHSA-g54x-29xv-58h5
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-2021-43464 · CVE Program
- CVE-2021-43464 · NVD
- FIRST EPSS
- GHSA-g54x-29xv-58h5 · GitHub Advisory Database · CC BY 4.0
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