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Vulnerability DatabaseCVE-2025-20033
CVE-2025-20033:
Chainguard vulnerability analysis and mitigation
Overview
A vulnerability in Mattermost versions 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, and 10.1.x <= 10.1.3 was identified that fails to properly validate post types (NVD, Red Hat).
Technical details
The vulnerability stems from improper validation of post types, specifically affecting users with sysconsole_read_plugins permission. The issue is tracked as CWE-1287 (Improper Validation of Specified Type of Input) and has been assigned a CVSS v3.1 base score of 4.3 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L (Red Hat).
Impact
When exploited, this vulnerability allows attackers to deny service to users with the sysconsole_read_plugins permission by creating a post with the custom_pl_notification type and specific props (NVD).
Mitigation and workarounds
The vulnerability has been fixed in Mattermost versions 10.2.3, 9.11.8, 10.0.4, and 10.1.4. Users are advised to upgrade to these or later versions to address the security issue (Mattermost Security).
Additional resources
Source: This report was generated using AI
Related Chainguard vulnerabilities:
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