
Cloud Vulnerability DB
A community-led vulnerabilities database
Mattermost versions 9.10.x <= 9.10.2, 9.11.x <= 9.11.1, and 9.5.x <= 9.5.9 contain a vulnerability where the system fails to check that the origin of the message in an integration action matches with the original post metadata. This allows an authenticated user to delete an arbitrary post (NVD).
The vulnerability 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:L/A:N. The issue is classified as CWE-862 (Missing Authorization) according to Mattermost's assessment (NVD).
When exploited, this vulnerability allows authenticated users to delete posts they shouldn't have access to, potentially leading to unauthorized removal of content from the Mattermost platform (NVD).
Users should upgrade to versions 9.10.3, 9.11.2, or newer to address this vulnerability. The fix has been implemented in these versions to properly validate the origin of integration action messages (Mattermost Security).
Source: This report was generated using AI
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