CVE-2023-5522

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CVSS 3.1

4.3 medium

EPSS

<1%p31

Published

Oct 17, 2023 (Oct 17, 2023)

Modified

Jun 17, 2026

Description

Mattermost Mobile fails to limit the maximum number of Markdown elements in a post allowing an attacker to send a post with hundreds of emojis to a channel and freeze the mobile app of users when viewing that particular channel.

Vendors: mattermost
Products: mattermost
Weakness: CWE-400
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

NVD CVE.org GitHub PoCs EPSS (0.4%)

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