What’s Vulnerable › Vulnerabilities
CVE-2023-6727: Leak Inaccessible Playbook Information via Channel Action IDOR
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-12-12 · updated 2026-06-17
- Weakness: CWE-200
Description
Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked.
Affected products
- Mattermost: through 8.1.5; from 9.2.0 through 9.2.1
References
Get alerted when CVE-2023-6727 or the next vulnerability affects your stack