Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the frontend via crafted malicious input.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
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History
Tue, 30 Sep 2025 16:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* cpe:2.3:a:mattermost:mattermost_server:10.2.0:-:*:*:*:*:*:* |
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| Vendors & Products |
Mattermost mattermost Server
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Wed, 15 Jan 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 15 Jan 2025 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the frontend via crafted malicious input. | |
| Title | WebApp crash via improper validation of proto style in attachments | |
| Weaknesses | CWE-704 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published: 2025-01-15T15:51:49.474Z
Updated: 2025-01-15T16:20:11.778Z
Reserved: 2025-01-15T15:30:33.435Z
Link: CVE-2025-21088
Updated: 2025-01-15T16:19:05.431Z
Status : Analyzed
Published: 2025-01-15T16:15:32.413
Modified: 2025-09-30T15:52:59.580
Link: CVE-2025-21088
No data.