A4C Bypass in Mattermost 9.6.1 Allows Slash Cmd via Playbook (CVE-2024-29215)
CVE-2024-29215 Published on May 26, 2024
Slash commands run in channel without channel membership via playbook task commands
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1, 9.6.x <= 9.6.1, 8.1.x <= 8.1.12 fail to enforce proper access control which allows a user to run a slash command in a channel they are not a member of via linking a playbook run to that channel and running a slash command as a playbook task command.
Vulnerability Analysis
CVE-2024-29215 can be exploited 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, with no impact on 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-2024-29215 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2024-29215
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Affected Versions
Mattermost:- Version 9.5.0, <= 9.5.3 is affected.
- Version 9.7.0, <= 9.7.1 is affected.
- Version 9.6.0, <= 9.6.1 is affected.
- Version 8.1.0, <= 8.1.12 is affected.
- Version 9.8.0 is unaffected.
- Version 9.5.4 is unaffected.
- Version 9.7.2 is unaffected.
- Version 9.6.2 is unaffected.
- Version 8.1.13 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.