What’s Vulnerable › Vulnerabilities
CVE-2019-20870
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-06-19 · updated 2026-06-17
- Weakness: CWE-20
Description
An issue was discovered in Mattermost Server before 5.10.0. An attacker can bypass the intended appearance of the Edited flag after changing a post's file ID.
Affected products
- Mattermost: before 5.10.0 — fixed in 5.10.0
How to fix
Upgrade to a fixed version: Mattermost 5.10.0. Check the vendor advisory for mitigations.
References
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