Mattermost 9.5-9.11 Improper Authorization for Archived Channel Data
CVE-2024-42406 Published on September 26, 2024
Unauthorized access on archived channels
Mattermost versions 9.11.x <= 9.11.0, 9.10.x <= 9.10.1, 9.9.x <= 9.9.2 and 9.5.x <= 9.5.8 fail to properly authorize requests when viewing archived channels is disabled, which allows an attacker to retrieve post and file information about archived channels. Examples are flagged or unread posts as well as files.
Vulnerability Analysis
CVE-2024-42406 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 a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2024-42406 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2024-42406
stack.watch emails you whenever new vulnerabilities are published in Mattermost Server or MatterMost. Just hit a watch button to start following.
Affected Versions
Mattermost:- Version 9.11.0 is affected.
- Version 9.10.0, <= 9.10.1 is affected.
- Version 9.9.0, <= 9.9.2 is affected.
- Version 9.5.0, <= 9.5.8 is affected.
- Version 10.0.0 is unaffected.
- Version 9.11.1 is unaffected.
- Version 9.10.2 is unaffected.
- Version 9.9.3 is unaffected.
- Version 9.5.9 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.