Improper post type validation on scheduled post endpoints
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
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| Mattermost | Mattermost | unaffected |
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No data.
| Vendor | Product | Versions | ||||||||||||||||
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| Mattermost | Mattermost |
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Vendor Solution
Update Mattermost to versions 11.11.0, 11.7.11 or higher.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.174% probability within 30 days)
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
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| Metrics |
ssvc
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| First Time appeared |
Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mattermost mattermost Server
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| Type | Values Removed | Values Added |
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| First Time appeared |
Mattermost
Mattermost mattermost |
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| Vendors & Products |
Mattermost
Mattermost mattermost |
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| Description | Mattermost 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 | |
| Title | Improper post type validation on scheduled post endpoints | |
| Weaknesses | CWE-863 | |
| References |
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| Metrics |
cvssV3_1
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