High severity8.8NVD Advisory· Published Nov 16, 2020· Updated Jun 17, 2026
CVE-2020-28693
CVE-2020-28693
Description
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>
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- HorizontCMS/HorizontCMSdescription
- Range: 1.0.0-beta
Patches
Vulnerability mechanics
References
1- github.com/ttimot24/HorizontCMS/issues/21nvdThird Party Advisory
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