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CVE-2025-20088: Insufficient Input Validation on Post Props
6.5
CVSS
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 post props which allows a malicious authenticated user to cause a crash via a malicious post.
Classification
CVE ID: CVE-2025-20088
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.5
Affected Products
Vendor: Mattermost
Product: Mattermost
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.5% (scored less or equal to compared to others)
EPSS Date: 2025-02-13 (when was this score calculated)