🛡️ CVE-2024-43813 — mattermost

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-284 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Mattermost versions 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 fail to enforce proper access controls which allows any authenticated user, including guests, to mark any channel inside any team as read for any user.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

Weakness class

CVE-2024-43813 is classified as CWE-284: Improper Access Control. The software does not restrict an action to the actors that should be allowed to perform it.

Affected software

CVE-2024-43813 is recorded against 1 package.

  • mattermost (from 9.10.0 up to 9.10.1)

Timeline and source

Published on 22 August 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

mattermost.com

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE CWE-284
Public Exploit ✅ No
Source NVD
Published 2024-08-22
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
mattermost 9.10.0 9.10.1

References

Similar Threats

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