Security readout for executives and security teams
Plain-English summary
This is a low-severity information disclosure issue in M-Files Server. If federated authentication event logging was enabled, versions before 21.11.10775.0 could write sensitive information into event logs. The main business risk is accidental exposure to people who can access those logs. Logging was disabled by default.
Executive priority
Treat this as a controlled remediation item, not an emergency, unless sensitive logs were broadly accessible. Prioritize affected internet-facing or shared administrative environments and confirm logging configuration.
Technical view
CVE-2021-41808 is CWE-532: insertion of sensitive information into log files. The CVSS 3.1 vector is local, low complexity, high privileges, user interaction required, unchanged scope, and low confidentiality impact. Affected M-Files Server versions are before 21.11.10775.0 when federated authentication event logging is enabled.
Likely exposure
Exposure is limited to M-Files Server deployments before 21.11.10775.0 where federated authentication logging to event logs was enabled. Sources state logging is disabled by default, reducing likely exposure.
Exploitation context
The source bundle does not cite active exploitation, and the CVE is not marked KEV. The issue is not described as remote code execution; it is sensitive data disclosure through event logs requiring privileged local/log access conditions.
Researcher notes
Evidence supports a narrow confidentiality issue tied to logging configuration. Sources do not specify exact sensitive fields, exploit activity, or detailed remediation beyond the fixed version threshold, so avoid assuming token types or attack paths.
Mitigation direction
- Upgrade M-Files Server to 21.11.10775.0 or later.
- Keep federated authentication event logging disabled unless required.
- Restrict access to server and event logs.
- Review vendor advisory before applying compensating controls.
- If sensitive data was logged, follow internal credential rotation policy.
Validation and detection
- Inventory M-Files Server versions in use.
- Confirm any instance below 21.11.10775.0 is remediated.
- Check whether federated authentication event logging was enabled.
- Review relevant event logs for sensitive authentication data.
- Verify event log access is restricted to authorized administrators.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-532: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-41808 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N0.61.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
2LowVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.m-files.com/about/trust-center/security-vulnerabilities/cve-2021-41808/CVE reference · x_refsource_MISC
- https://empower.m-files.com/security-advisories/CVE-2021-41808CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Insertion of Sensitive Information into Log File
Insertion of Sensitive Information into Log File represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.