CVE-2025-41423: Unauthorized Playbooks Post Deletion in Mattermost Playbooks Plugin

3.1 CVSS

Description

Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate permissions for the API endpoint /plugins/playbooks/api/v0/signal/keywords/ignore-thread, allowing any user or attacker to delete posts containing actions created by the Playbooks bot, even without channel access or appropriate permissions.

Classification

CVE ID: CVE-2025-41423

CVSS Base Severity: LOW

CVSS Base Score: 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem Types

CWE-863: Incorrect Authorization

Affected Products

Vendor: Mattermost

Product: Mattermost

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 4.96% (scored less or equal to compared to others)

EPSS Date: 2025-05-23 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-41423
https://mattermost.com/security-updates

Timeline