Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-47003.json"