Mattermost: >> Mattermost Server >> 9.0.6 Security Vulnerabilities
Mattermost fails to properly restrict the access of files attached to posts in an archived channel, resulting in members being able to access files of archived channels even if the “Allow users to view archived channels” option is disabled.
CVSS Score
3.1
EPSS Score
0.002
Published
2024-02-29
Mattermost fails to properly authorize the requests fetching team associated AD/LDAP groups, allowing a user to fetch details of AD/LDAP groups of a team that they are not a member of.
CVSS Score
4.3
EPSS Score
0.002
Published
2024-02-29
Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.
CVSS Score
4.3
EPSS Score
0.003
Published
2024-02-29
Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post.
CVSS Score
4.3
EPSS Score
0.003
Published
2024-02-09
Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled.
CVSS Score
4.3
EPSS Score
0.001
Published
2023-12-12