920 matches found
Incorrect Implementation of Authentication Algorithm
Overview Affected versions of this package are vulnerable to Incorrect Implementation of Authentication Algorithm. An attacker can gain unauthorized access to another user's account by leveraging a specially crafted email address when switching authentication methods and sending a request to the...
Incorrect Implementation of Authentication Algorithm
Overview github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative Affected versions of this package are vulnerable to Incorrect Implementation of Authentication Algorithm. An attacker can gain unauthorized access to another user's account by leveraging a specially...
Incorrect Implementation of Authentication Algorithm
Overview Affected versions of this package are vulnerable to Incorrect Implementation of Authentication Algorithm. An attacker can gain unauthorized access to another user's account by leveraging a specially crafted email address when switching authentication methods and sending a request to the...
GHSA-MP6X-97XJ-9X62 Mattermost fails to to verify the token used during code exchange
Mattermost versions 11.0.x = 11.0.2, 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email...
Mattermost fails to to verify the token used during code exchange
Mattermost versions 11.0.x = 11.0.2, 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email...
EUVD-2025-199833
Mattermost versions 11.0.x = 11.0.2, 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email...
Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication
Mattermost versions 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12, 11.0.x = 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of...
GHSA-3X39-62H4-F8J6 Mattermost fails to properly validate OAuth state tokens during OpenID Connect authentication
Mattermost versions 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12, 11.0.x = 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of...
CVE-2025-12421
Mattermost versions 11.0.x = 11.0.2, 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email...
CVE-2025-12421
Mattermost suffers an authentication-tampering vulnerability (CVE-2025-12421) where the token used during code exchange is not verified to originate from the same authentication flow. Affected versions include 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, and 10.5.x
CVE-2025-12421 Account Takeover via Code Exchange Endpoint
Mattermost versions 11.0.x = 11.0.2, 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email...
CVE-2025-12421 Account Takeover via Code Exchange Endpoint
Mattermost versions 11.0.x = 11.0.2, 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email...
CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers
Mattermost versions 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12, 11.0.x = 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of...
CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers
Mattermost versions 10.12.x = 10.12.1, 10.11.x = 10.11.4, 10.5.x = 10.5.12, 11.0.x = 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of...
EUVD-2025-199647
An issue was discovered in Veal98 Echo Open-Source Community System 2.2 thru 2.3 allowing an unauthenticated attacker to cause the server to send email verification messages to arbitrary users via the /sendEmailCodeForResetPwd endpoint potentially causing a denial of service to the server or the...
CVE-2025-51741
An issue was discovered in Veal98 Echo Open-Source Community System 2.2 thru 2.3 allowing an unauthenticated attacker to cause the server to send email verification messages to arbitrary users via the /sendEmailCodeForResetPwd endpoint potentially causing a denial of service to the server or the...
CVE-2025-51741
An issue was discovered in Veal98 Echo Open-Source Community System 2.2 thru 2.3 allowing an unauthenticated attacker to cause the server to send email verification messages to arbitrary users via the /sendEmailCodeForResetPwd endpoint potentially causing a denial of service to the server or the...
CVE-2025-11794
Mattermost versions 10.11.x = 10.11.3, 10.5.x = 10.5.11, 10.12.x = 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/userid/email/verify/member endpoint...
GHSA-MQP8-PGG5-7X7M Mattermost allows system administrators to access password hashes and MFA secrets
Mattermost versions 10.11.x = 10.11.3, 10.5.x = 10.5.11, 10.12.x = 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/userid/email/verify/member endpoint...