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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (21.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
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
- product.m-files.com/security-advisories/cve-2023-5524/ (vendor-advisory)
- empower.m-files.com/security-advisories/CVE-2023-5524 (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.