Mattermost DoS via unvalidated RegExp in server URL path
CVE-2023-5876 Published on November 2, 2023
Regex DoS from a malicious server enrolled in Desktop
Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.
Vulnerability Analysis
CVE-2023-5876 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of 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-2023-5876 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2023-5876
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Affected Versions
Mattermost Desktop:- Before and including 5.5.0 is affected.
- Version 5.5.1 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.