CVE-2023-7113: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

December 29, 2023 (updated January 3, 2024)

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.

References

github.com/advisories/GHSA-h3gq-j7p9-x3p4
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2023-7113

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