Mattermost versions 9.11.x <= 9.11.6 fail to filter out DMs from the deleted channels endpoint which allows an attacker to infer user IDs and other metadata from deleted DMs if someone had manually marked DMs as deleted in the database.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
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History
Mon, 29 Sep 2025 18:15:00 +0000
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Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mattermost mattermost Server
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Mon, 14 Jul 2025 13:45:00 +0000
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epss
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epss
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Sun, 13 Jul 2025 13:45:00 +0000
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epss
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epss
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Fri, 14 Feb 2025 18:15:00 +0000
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ssvc
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Fri, 14 Feb 2025 18:00:00 +0000
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| Description | Mattermost versions 9.11.x <= 9.11.6 fail to filter out DMs from the deleted channels endpoint which allows an attacker to infer user IDs and other metadata from deleted DMs if someone had manually marked DMs as deleted in the database. | |
| Title | Leaked User IDs and Metadata of Deleted DMs | |
| Weaknesses | CWE-754 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published: 2025-02-14T17:52:17.895Z
Updated: 2025-02-14T18:09:02.166Z
Reserved: 2025-01-15T18:13:55.213Z
Link: CVE-2025-0503
Updated: 2025-02-14T18:08:57.286Z
Status : Analyzed
Published: 2025-02-14T18:15:23.870
Modified: 2025-09-29T18:11:58.467
Link: CVE-2025-0503
No data.