Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2024-1402

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. 
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 55.8%
CVSS Severity
CVSS v3 Score 4.3
Products affected by CVE-2024-1402


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