CVE-2026-63205

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies th...

EUVD-2026-87257

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies th...

CVE-2026-63205 Zammad: Channel admins can read unauthorized attachments via signature rich-text body

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies th...

CVE-2026-63205 Zammad: Channel admins can read unauthorized attachments via signature rich-text body

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies th...

CVE-2026-63205: Authorization Bypass Through User-Controlled Key

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies th...

CVE-2026-82920

Mattermost versions 11.9.x ≤ 11.9.0 , 11.8.x ≤ 11.8.4 , and 11.7.x ≤ 11.7.7 fail to enforce authorization boundaries on the ABAC policy update endpoint. A channel or team administrator can detach a system-assigned ABAC parent policy by sending a crafted PUT /api/v4/access_control_policies request...

CVE-2026-16048 Channel member roles accept out-of-scope roles

Mattermost versions 11.8.x = 11.8.2, 11.7.x = 11.7.6, 10.11.x = 10.11.21 fail to restrict channel member role assignment to channel-scoped roles which allows a channel administrator to gain additional channel permissions via the channel member roles API.. Mattermost Advisory ID: MMSA-2026-00697...

CVE-2026-16048

Mattermost versions 11.8.x = 11.8.2, 11.7.x = 11.7.6, 10.11.x = 10.11.21 fail to restrict channel member role assignment to channel-scoped roles which allows a channel administrator to gain additional channel permissions via the channel member roles API.. Mattermost Advisory ID: MMSA-2026-00697...

CVE-2026-7387 Mattermost group syncable endpoints allow privilege escalation via scheme_admin

Mattermost versions 11.6.x = 11.6.1, 11.5.x = 11.5.4, 10.11.x = 10.11.15, 10.11.x = 10.11.16 Mattermost fails to require role-management authorization when setting the schemeadmin flag on group syncable link and patch endpoints, which allows a user with group-link permissions to escalate themselv...

EUVD-2026-16120

A vulnerability has been found in dameng100 muucmf 1.9.5.20260309. The affected element is an unknown function of the file channel/admin.Account/autoReply.html. Such manipulation of the argument keyword leads to cross site scripting. It is possible to launch the attack remotely. The exploit has...

EUVD-2024-34453

Malicious code in bioql PyPI...

CVE-2024-31859

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin...

Improper Authorization

mattermost is vulnerable to Improper Authorization. The vulnerability is due to a failure to perform proper authorization checks, allowing a member running a playbook in an existing channel to be promoted to a channel admin...

CVE-2024-31859

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin...

CVE-2024-31859 Member promoted to channel admin via playbooks run linking to channel

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin...

CVE-2024-31859

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin...

CVE-2024-31859 Member promoted to channel admin via playbooks run linking to channel

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin...

CVE-2024-31859 Member promoted to channel admin via playbooks run linking to channel

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin...

CVE-2024-31859: Improper Access Control

Mattermost versions 9.5.x = 9.5.3, 9.6.x = 9.6.1 and 8.1.x = 8.1.12 fail to perform proper authorization checks which allows a member running a playbook in an existing channel to be promoted to a channel admin...