Improper post type validation on scheduled post endpoints
Exact source revision recorded 26 Oct 2026 15:35:30 UTC. It does not establish the source's current position. Latest evidence.
cve-program · CVE-2026-93847
PublishedMattermost versions 11.7.x <= 11.7.10 fail to validate reserved system post types on the scheduled post creation and publication paths which allows an authenticated channel member to publish messages rendering as trusted system events via the scheduled post endpoint.. Mattermost Advisory ID: MMSA-2026-00732
- Source published
- 26 Oct 2026 14:15:12 UTC
- Source modified
- 26 Oct 2026 14:15:12 UTC
- Observed here
- 26 Oct 2026 15:35:30 UTC
- Source terms
- CVE Program Terms of Use
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CVSS 3.1 · 3.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N