CVE-2023-4108
Audit logging fails to sanitize post metadata
Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Audit logging fails to sanitize post metadata
Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged
- Record
CVE-2023-4108- CVSS 3.1
- 4.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
EUVDEUVD-2023-2262
Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged
- Record
EUVD-2023-2262- CVSS 3.1
- 4.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9rww-66w7-7vjx
Mattermost fails to sanitize post metadata
Mattermost fails to sanitize post metadata during audit logging, resulting in permalinks' contents being logged.
- Record
GHSA-9rww-66w7-7vjx- CVSS 3.1
- 4.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-532
- Updated
- 2026-11-02
NVD
Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged
- Record
CVE-2023-4108- CVSS 3.1
- 4.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
OSV
Audit logging fails to sanitize post metadata
Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged
- Record
CVE-2023-4108- CVSS 3.1
- 4.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
OSVGHSA-9rww-66w7-7vjx
Mattermost fails to sanitize post metadata
Mattermost fails to sanitize post metadata during audit logging, resulting in permalinks' contents being logged.
- Record
GHSA-9rww-66w7-7vjx- CVSS 3.1
- 4.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-532
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/mattermost/mattermost-server/v6Go |
through 7.8.7 | 7.8.8 |
github.com/mattermost/mattermost-server/v6Go |
7.9.0 to 7.9.5 | 7.9.6 |
github.com/mattermost/mattermost-server/v6Go |
7.10.0 to 7.10.3 | 7.10.4 |
github.com/mattermost/mattermost-server/v6Go |
before 7.8.8 | 7.8.8 |
github.com/mattermost/mattermost-server/v6Go |
7.9.0 up to 7.9.6 | 7.9.6 |
github.com/mattermost/mattermost-server/v6Go |
7.10.0 up to 7.10.4 | 7.10.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-4108 is a medium vulnerability (CVSS 4.5) in Mattermost, published August 11, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. Fixed in github.com/mattermost/mattermost-server/v6 7.8.8.