CVE-2024-41162 Malicious remote can make an arbitrary local channel read-only

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5 and 9.8.x = 9.8.1 fail to disallow the modification of local channels by a remote, when shared channels are enabled, which allows a malicious remote to make an arbitrary local channel read-only...

CVE-2024-41144 Malicious remote can create/update/delete arbitrary posts in arbitrary channels

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5, 9.8.x = 9.8.1 fail to properly validate synced posts, when shared channels are enabled, which allows a malicious remote to create/update/delete arbitrary posts in arbitrary channels...

CVE-2024-41144 Malicious remote can create/update/delete arbitrary posts in arbitrary channels

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5, 9.8.x = 9.8.1 fail to properly validate synced posts, when shared channels are enabled, which allows a malicious remote to create/update/delete arbitrary posts in arbitrary channels...

CVE-2024-39839 Remote username set to an arbitrary string by remote user

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5, 9.8.x = 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the...

CVE-2024-39837

Mattermost Server (Mattermost) is affected by CVE-2024-39837. The issue is in channel creation restriction when shared channels are enabled, allowing a remote attacker to create arbitrary channels. This affects Mattermost versions 9.9.x <= 9.9.0 and 9.5.x

CVE-2024-39837 Malicious remote can create arbitrary channels

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6 fail to properly restrict channel creation which allows a malicious remote to create arbitrary channels, when shared channels were enabled...

CVE-2024-39777 Malicious remote can invite itself to an arbitrary local channel

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5 and 9.8.x = 9.8.1 fail to disallow unsolicited invites to expose access to local channels, when shared channels are enabled, which allows a malicious remote to send an invite with the ID of an existing local channel, and that local...

CVE-2024-39777 Malicious remote can invite itself to an arbitrary local channel

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5 and 9.8.x = 9.8.1 fail to disallow unsolicited invites to expose access to local channels, when shared channels are enabled, which allows a malicious remote to send an invite with the ID of an existing local channel, and that local...

CVE-2024-39777

Mattermost contains a vulnerability (CVE-2024-39777) where, when shared channels are enabled, unsolicited invites can expose access to local channels. A remote attacker can send an invite containing the ID of an existing local channel, causing that local channel to become shared without the local...

CVE-2024-39777 Malicious remote can invite itself to an arbitrary local channel

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5 and 9.8.x = 9.8.1 fail to disallow unsolicited invites to expose access to local channels, when shared channels are enabled, which allows a malicious remote to send an invite with the ID of an existing local channel, and that local...

CVE-2024-39274 Malicious remote can add users to arbitrary teams and channels

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5 and 9.8.x = 9.8.1 fail to properly validate that the channel that comes from the sync message is a shared channel, when shared channels are enabled, which allows a malicious remote to add users to arbitrary teams and channels...

CVE-2024-39274 Malicious remote can add users to arbitrary teams and channels

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5 and 9.8.x = 9.8.1 fail to properly validate that the channel that comes from the sync message is a shared channel, when shared channels are enabled, which allows a malicious remote to add users to arbitrary teams and channels...

CVE-2024-36492 Existing local user overwritten by malicious remote

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5, 9.8.x = 9.8.1 fail to disallow the modification of local users when syncing users in shared channels. which allows a malicious remote to overwrite an existing local user...

CVE-2024-36492 Existing local user overwritten by malicious remote

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6, 9.7.x = 9.7.5, 9.8.x = 9.8.1 fail to disallow the modification of local users when syncing users in shared channels. which allows a malicious remote to overwrite an existing local user...

CVE-2024-29977

Mattermost Server vulnerability CVE-2024-29977 affects versions 9.9.x ≤ 9.9.0 and 9.5.x ≤ 9.5.6. The issue is improper validation of synced reactions when shared channels are enabled, enabling a remote attacker to create arbitrary reactions on arbitrary posts. Connected documents confirm the affe...

CVE-2024-29977 Malicious remote can create arbitrary reactions on arbitrary posts

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts...

CVE-2024-29977 Malicious remote can create arbitrary reactions on arbitrary posts

Mattermost versions 9.9.x = 9.9.0, 9.5.x = 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts...

PT-2024-28415 · Mattermost · Mattermost

Name of the Vulnerable Software and Affected Versions: Mattermost versions 9.5.x through 9.5.6 Mattermost versions 9.7.x through 9.7.5 Mattermost versions 9.8.x through 9.8.1 Mattermost versions 9.9.x through 9.9.0 Description: The issue arises from the failure to properly validate that the chann...

PT-2024-27027 · Mattermost · Mattermost

Name of the Vulnerable Software and Affected Versions: Mattermost versions 9.5.x through 9.5.6 Mattermost versions 9.7.x through 9.7.5 Mattermost versions 9.8.x through 9.8.1 Mattermost versions 9.9.x through 9.9.0 Description: The issue allows a malicious remote user to overwrite an existing loc...

Mattermost 安全漏洞

Mattermost is an open source collaboration platform from Mattermost, Inc. in the United States. A security vulnerability exists in Mattermost that stems from the inability to disable users from setting their own remote usernames when the shared channel is enabled, which allows a remote user to se...