CVE-2023-26775
Published: 04 April 2023
Summary
CVE-2023-26775 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Monitorr Monitorr. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 7.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-26775 is an unrestricted file upload vulnerability (CWE-434) affecting Monitorr version 1.7.6. The flaw resides in the assets/php/upload.php endpoint and permits an attacker to supply a crafted file that results in arbitrary code execution on the host.
A remote attacker can exploit the issue without authentication by sending a malicious upload to the vulnerable endpoint. Successful exploitation grants the ability to execute arbitrary code, leading to impacts on confidentiality, integrity, and availability as reflected in the CVSS 7.8 score.
EPSS for the CVE reached a peak of 0.1052 and currently stands at 0.0883 after receding; the references consist primarily of the project repository and disclosure links without accompanying patch or mitigation guidance.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-30568
Vulnerability details
File Upload vulnerability found in Monitorr v.1.7.6 allows a remote attacker t oexecute arbitrary code via a crafted file upload to the assets/php/upload.php endpoint.
- 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.