CVE-2023-6189: 
M-Files Server vulnerability analysis and mitigation

CVE-2023-6189 is a security vulnerability discovered in M-Files server versions prior to 23.11.13156.0. The vulnerability was disclosed on November 22, 2023, and involves missing access permissions checks that could allow attackers to perform unauthorized data write and export jobs using the M-Files API methods (M-Files Advisory).

The vulnerability stems from improper handling of insufficient permissions or privileges (CWE-280) in the M-Files server. Using the M-Files API method, any user can write log entries and perform data export jobs that should only be accessible to authenticated users. The vulnerability has been assigned a CVSS 3.1 Base Score of 4.3 (Medium) with a vector string of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:R (M-Files Advisory).

The vulnerability allows unauthorized users to perform data write operations and export jobs through the M-Files API methods, potentially compromising data integrity. However, the impact is considered low as it does not affect confidentiality or availability of the system (M-Files Advisory).

The vulnerability was internally discovered and has not been publicly exploited. The probability of exploitation is considered low according to the vendor's assessment. No public exploits are known to exist at this time (M-Files Advisory).

The vulnerability has been fixed in M-Files server version 23.11.13156.0. Users are advised to upgrade to this version or later to address the security issue (M-Files Advisory).