CVE-2023-5331: File Information Leak via IDOR in file_id in Draft Posts
Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is CVE-2023-5331?
CVE-2023-5331 is a vulnerability in Mattermost where it fails to properly check the creator of an attached file when adding the file to a draft post.
How does Mattermost fail to check the creator of an attached file?
Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information.
Which versions of Mattermost are affected by CVE-2023-5331?
Mattermost versions up to and including 7.8.11, versions between 8.0.0 and 8.0.3 (exclusive), and versions between 8.1.0 and 8.1.2 (exclusive) are affected.
What is the severity of CVE-2023-5331?
CVE-2023-5331 has a severity rating of medium, with a score of 5.3.
How can I fix the CVE-2023-5331 vulnerability?
To fix the CVE-2023-5331 vulnerability, update your Mattermost server to a version higher than 8.1.2 or apply the necessary patches from Mattermost.