CVE-2023-36969
Published: 06 July 2023
Summary
CVE-2023-36969 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Cmsmadesimple Cms Made Simple. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 1.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CMS Made Simple version 2.2.17 contains a remote command execution vulnerability in its file upload function, tracked as CVE-2023-36969 and assigned CWE-434 for unrestricted upload of files with dangerous types. The flaw received a CVSS 3.1 score of 8.8 reflecting network attack vector, low complexity, and low required privileges.
An authenticated attacker with low privileges can upload a crafted file over the network without user interaction, resulting in arbitrary command execution that yields full compromise of confidentiality, integrity, and availability on the affected system.
The associated EPSS score reached a peak of 0.7152 with a current value of 0.6506. Public references consist of a technical write-up demonstrating the authenticated file-upload RCE vector.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-40889
Vulnerability details
CMS Made Simple v2.2.17 is vulnerable to Remote Command Execution via the File Upload Function.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.