CVE-2023-3615

8.1 highEPSS 0.3%

High (8.1) in mattermost mattermost. EPSS 0.3% chance of exploitation in the next 30 days.

Mattermost iOS app fails to properly validate the server certificate while initializing the TLS connection allowing a network attacker to intercept the WebSockets connection.

Severity

CVSS 3.1

8.1 high

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2023-07-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mattermost:mattermost

References

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

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