CVE ID :CVE-2026-93851
Published : Oct. 28, 2026, 9:41 p.m. | 10 minutes ago
Description :Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10 fail to validate the target post ID in the Agents plugin’s mention reminder component, which allows an authenticated user who can post in a channel visible to a system administrator to cause the administrator’s browser to send an unintended API request, resulting in replacement of an installed plugin and code execution on the server, via a crafted post containing a forged mention reminder that the administrator clicks. Mattermost Advisory ID: MMSA-2026-00742
Severity: 8.0 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more… To Read More Visit Read More