CVE-2023-2787

Summary

CVE-2023-2787 is a vulnerability affecting Mattermost, an open-source team collaboration platform. The issue arises from Mattermost's failure to properly verify channel membership when accessing message threads. An attacker can exploit this vulnerability using the message threads API, thereby gaining unauthorized access to arbitrary posts in unintended channels. This weakness poses a significant risk to data privacy and confidentiality, making it essential for organizations using Mattermost to apply the available patch promptly.

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