Damien Cauquil

**Name of the Vulnerable Software and Affected Versions** POSH versions 3.0 through 3.2.1 **Description** The issue concerns a problem in the password reset functionality that allows remote attackers to redirect users to arbitrary web sites, potentially leading to phishing attacks. This is achieved by manipulating a URL in the `redirect` parameter to the `/portal/scr sendmd5.php` API endpoint. **Recommendations** For POSH versions 3.0 through 3.2.1, as a temporary workaround, consider restricting access to the password reset functionality until a fix is available. Avoid using the `redirect` parameter in the `/portal/scr sendmd5.php` API endpoint to minimize the risk of exploitation.

**Name of the Vulnerable Software and Affected Versions** POSH versions 3.0 through 3.2.1 **Description** The issue allows remote attackers to inject arbitrary web script or HTML. This can be achieved via the `error` parameter to "/includes/plugins/mobile/scripts/login.php" or the `id` parameter to "portal/openrssarticle.php". **Recommendations** For POSH versions 3.0 through 3.2.1, consider disabling access to the "/includes/plugins/mobile/scripts/login.php" and "portal/openrssarticle.php" endpoints until a fix is available. Restrict the use of the `error` and `id` parameters in these endpoints to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

**Name of the Vulnerable Software and Affected Versions** Zimbra Collaboration versions prior to 8.6.0 Patch 8 **Description** The issue concerns multiple cross-site request forgery (CSRF) vulnerabilities in the Admin Console. These vulnerabilities allow remote attackers to hijack the authentication of administrators for requests that add, modify, or remove accounts. This is possible due to the failure to use a CSRF token and perform referer header checks. **Recommendations** For versions prior to 8.6.0 Patch 8, update to 8.6.0 Patch 8 or later to resolve the issue. As a temporary workaround, consider restricting access to the Admin Console to minimize the risk of exploitation.

**Name of the Vulnerable Software and Affected Versions** Zimbra Collaboration Server versions prior to 8.5 **Description** The issue concerns multiple cross-site request forgery (CSRF) vulnerabilities in the Mail interface. These vulnerabilities allow remote attackers to hijack the authentication of arbitrary users for requests that change account preferences. This is achieved via a SOAP request to the `service/soap/BatchRequest` endpoint. **Recommendations** For versions prior to 8.5, update to version 8.5 or later to resolve the issue.