Mattermost Mobile Markdown Overflow Exploits to Cause DoS
CVE-2023-5522 Published on October 17, 2023
Mobile app freezes when receiving a post with hundreds of emojis
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.
Vulnerability Analysis
CVE-2023-5522 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2023-5522 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2023-5522
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Affected Versions
Mattermost:- Before 2.8.0 is affected.
- Version 2.8.0 is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.