🛡️ CVE-2023-4108 — mattermost

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: High — administrative rights are needed first.
• User interaction: Required — someone has to click, open or visit something.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: None.
• Availability impact: None.

Weakness class

CVE-2023-4108 is classified as CWE-200: Exposure of Sensitive Information. Information that should stay internal is disclosed to someone who is not authorised to see it.

Affected software

CVE-2023-4108 is recorded against 2 packages.

• github.com/mattermost/mattermost-server/v6
• mattermost (from 7.10.0 up to 7.10.4)

Timeline and source

Published on 11 August 2023 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Package)
mattermost.com (Web)

Other advisories for this package

github.com/mattermost/mattermost-server/v6 has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-5740 (published 7 Jul 2026)
• CVE-2026-4915 (published 7 Jul 2026)
• CVE-2026-27656 (published 25 Jun 2026)
• CVE-2026-3112 (published 25 Jun 2026)
• CVE-2026-6345 (published 25 Jun 2026)
• CVE-2026-4055 (published 25 Jun 2026)
• CVE-2026-5163 (published 25 Jun 2026)
• CVE-2026-20719 (published 25 Jun 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-200: Exposure of Sensitive Information) in other software:

• CVE-2023-41050 (6.8 Medium, published 13 Jul 2026)
• CVE-2022-24886 (2.0 Low, published 12 Jul 2026)
• CVE-2023-30776 (published 7 Jul 2026)
• CVE-2023-35625 (4.7 Medium, published 7 Jul 2026)
• CVE-2014-3517 (published 6 Jul 2026)
• CVE-2015-9543 (2.0 Low, published 6 Jul 2026)
• CVE-2015-8749 (published 6 Jul 2026)
• CVE-2016-3954 (published 6 Jul 2026)

Details

Affected Packages

References