The vulnerability of the Confluence plugin for the instant messaging application Mattermost, related to deficiencies in authentication procedures, allows a perpetrator to gain unauthorized access to protected information.

The vulnerability of the Confluence plugin for the instant messaging application Mattermost is related to deficiencies in the authentication process. Exploiting this vulnerability could allow a malicious actor, operating remotely, to gain unauthorized access to protected information...

The vulnerability of the Confluence plugin for the instant messaging application Mattermost, related to deficiencies in the authentication process, allows a hacker to elevate their privileges.

The vulnerability of the Confluence plugin for the instant messaging application Mattermost is related to deficiencies in the authentication process. Exploiting this vulnerability could allow a malicious actor to gain increased privileges remotely...

The vulnerability of the Confluence plugin for the instant messaging application Mattermost, related to insufficient checking of unusual or exceptional states, allows a hacker to trigger a service failure.

The vulnerability of the Confluence plugin for the instant messaging application Mattermost is related to insufficient checking of unusual or exceptional states. Exploiting this vulnerability could allow a malicious actor to cause service failures...

The vulnerability of the Confluence plugin for the instant messaging application Mattermost, related to insufficient checking of unusual or exceptional states, allows a hacker to trigger a service failure.

The vulnerability of the Confluence plugin for the instant messaging application Mattermost is related to insufficient checking of unusual or exceptional states. Exploiting this vulnerability could allow a malicious actor to cause service failures...

CVE-2025-44004

Mattermost Confluence Plugin version 1.5.0 fails to check the authorization of the user to the Mattermost instance which allows attackers to create a channel subscription without proper authorization via API call to the create channel subscription endpoint...

CVE-2025-49221

Mattermost Confluence Plugin version 1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to access subscription details without via API call to GET subscription endpoint...

CVE-2025-8285

Mattermost Confluence Plugin version 1.5.0 fails to check the access of the user to the channel which allows attackers to create channel subscription without proper access to the channel via API call to the create channel subscription endpoint...

CVE-2025-54463

Mattermost Confluence Plugin version 1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body...

CVE-2025-54478

Mattermost Confluence Plugin version 1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint...

CVE-2025-54458

Mattermost Confluence Plugin version 1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a Confluence space the user does not have access to via the create subscription endpoint...

CVE-2025-52931

Mattermost Confluence Plugin version 1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to update channel subscription endpoint with an invalid request body...

CVE-2025-53514

Mattermost Confluence Plugin version 1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body...

CVE-2025-53910

Mattermost Confluence Plugin version 1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint...

CVE-2025-54525

Mattermost Confluence Plugin version 1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to create channel subscription endpoint with an invalid request body...

CVE-2025-48731

Mattermost Confluence Plugin version 1.5.0 fails to check the access of the user to the Confluence space which allows attackers to edit a subscription for a Confluence space the user does not have access for via edit subscription endpoint...

CVE-2025-53857

Mattermost Confluence Plugin version 1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint...

Improper Check for Unusual or Exceptional Conditions

Overview Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions via the webhook endpoints. An attacker can cause the plugin to crash by repeatedly sending invalid request bodies to the server. Remediation Upgrade...

Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function due to an API call to edit the channel subscription endpoint. An attacker can modify channel subscriptions by sending unauthorized API requests. Remediation Upgrade...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization via the create channel subscription endpoint. An attacker can create unauthorized channel subscriptions by making API calls without proper access checks. Remediation Upgrade...

Improper Check for Unusual or Exceptional Conditions

Overview Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions via the constant hits to the server webhook endpoint with an invalid request body. An attacker can cause the plugin to crash by repeatedly sending invalid request bodies to the...