Arbitrary file upload in M-Files Web Companion
CVE-2023-5524
Insufficient blacklisting in M-Files Web Companion before release version 23.10 and LTS Service Release Versions before 23.8 LTS SR1 allows Remote Code Execution via specific file types
Vulnerability class: Unrestricted File Upload
EPSS: 0.003 (23.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
Affected products
- M-files Web Companion — versions 23.3, 23.8 LTS SR1
- M-files Web_companion — versions 23.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@m-files.com (vendor-advisory)
- security@m-files.com (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-5524?
- CVE-2023-5524 is a high-severity vulnerability in M-Files Web Companion, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.2/10. Published 2023-10-20.
- How severe is CVE-2023-5524?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2023-5524 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.