Path Traversal in Zammad
CVE-2026-63006
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequences. When an authenticated agent views the content, the browser resolves the URL to a protected API endpoint and sends the request with the agent's session cookie, enabling side effects such as forced logout without any user interaction. This issue is fixed in version 7.1.2.
Vulnerability class: Path Traversal (Directory Traversal)
Published .
EPSS exploit prediction
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Affected products
- Zammad — versions < 7.1.2