An unrestricted file upload issue in HorizontCMS 1.0.0-beta allows an authenticated…
Priority MEDIUM 43CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
An unrestricted file upload issue in HorizontCMS 1.0.0-beta allows an authenticated remote attacker to upload PHP code through a zip file by uploading a theme, and executing the PHP file via an HTTP GET request to /themes/<php_file_name>
Why it matters now
EPSS 0.02528 84th 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 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta:*:*:*:*:*:* | 1.0.0 beta | Vulnerable | Horizontcms Project |
- cpe:2.3:a:horizontcms_project:horizontcms:1.0.0:beta:*:*:*:*:*:* Versions 1.0.0 beta Vulnerable ·Horizontcms Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-28693
- 2026-10-03 Alias added: GHSA-p5vc-h7j2-25qc
References
More Horizontcms Project Horizontcms vulnerabilities
- TI-2020-16653 An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an… CVSS 3.1HIGH 8.8
- TI-2021-09547 File upload vulnerability in HorizontCMS before 1.0.0-beta.3 via uploading a .htaccess… CVSS 3.1CRITICAL 9.8
- TI-2022-08843 HorizontCMS v1.0.0-beta.2 was discovered to contain an arbitrary file download… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-28693 · CVE Program
- CVE-2020-28693 · NVD
- FIRST EPSS
- GHSA-p5vc-h7j2-25qc · GitHub Advisory Database · CC BY 4.0
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