CVE-2023-2787

Collapsed Reply Threads APIs leak message contents from private channels

CVSS 6.5 MEDIUMEPSS 0.5%CWE-862

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.5%KEV nãoPoC —Patch —

Lifecycle

16 Jun 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

Mattermost · Mattermost

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References

https://mattermost.com/security-updates/