What’s Vulnerable › Vulnerabilities

CVE-2023-7113

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-29 · updated 2026-06-17
• Weakness: CWE-79

Description

Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.

Affected products

• Mattermost: before 8.1.7 — fixed in 8.1.7

How to fix

Upgrade to a fixed version: Mattermost 8.1.7. Check the vendor advisory for mitigations.

References

• https://mattermost.com/security-updates
• https://mattermost.com/security-updates

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