CVE-2023-5522 MEDIUM

CVE-2023-5522: Mobile app freezes when receiving a post with hundreds of emojis

Vendor Mattermost
Product Mattermost
Weakness CWE-400
Published October 17, 2023
Last update September 5, 2024
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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. 

Key dates

02Disclosure timeline

October 17, 2023 CVE published
September 5, 2024 Record updated