Zimbra Collaboration vulnerabilities

Unspecified vulnerability in Zimbra Collaboration before version 8.7.0 allows remote attackers to affect integrity via unknown vectors.

Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to affect integrity via unknown vectors.

Multiple cross-site request forgery (CSRF) vulnerabilities in Zimbra Collaboration before version 8.7.0 allow remote attackers to hijack the authentication of unspecified victims via vectors involving the Client uploader extension or extension REST handlers.

Multiple unspecified vulnerabilities in Zimbra Collaboration before version 8.7.0 allow remote attackers to affect integrity.

Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to affect integrity via unknown vectors.

Unspecified vulnerability in Zimbra Collaboration before version 8.7.0 allows remote attackers to affect confidentiality via unknown vectors.

Zimbra Collaboration before version 8.7.0 allows remote attackers to conduct deserialization attacks via unspecified vectors.

In Zimbra Collaboration (ZCS) before 10.1.17, there is a vulnerability involving weak cryptographic key generation in the OnlyOffice integration. The JWT secret (zimbraDocumentEditingJwtSecret) is generated using an insecure random number generator, resulting in insufficient entropy. An attacker who obtains a JWT signed with this secret may be able to recover it through offline brute-force, potentially enabling JWT forgery.

In Zimbra Collaboration (ZCS) before 10.1.17, a Cross-Site Request Forgery (CSRF) vulnerability exists in the Exchange Web Services (EWS) endpoint of Zimbra Collaboration (ZCS) due to insufficient validation of request content types. An attacker can exploit this vulnerability by causing an authenticated user to submit a crafted request, potentially allowing unauthorized actions to be performed on behalf of the victim.

In Zimbra Collaboration before 10.1.17, a local file inclusion (LFI) vulnerability exists in the Zimbra Classic Web Client due to improper validation of the fu request parameter. An unauthenticated attacker can exploit this vulnerability by supplying a crafted path, potentially allowing unauthorized disclosure of protected files, such as WEB-INF/web.xml, within the web application directory. This occurs in the Forward servlet.

In Zimbra Collaboration (ZCS) before 10.1.17, a path traversal vulnerability exists in the Zimbra Briefcase document editing functionality due to improper validation of the packages parameter. An authenticated attacker can exploit this vulnerability by supplying a crafted path traversal sequence, potentially allowing unauthorized disclosure of sensitive files within the web application directory.

In Zimbra Collaboration (ZCS) before 10.1.17, there is a stored cross-site scripting (XSS) vulnerability in the Zimbra Classic Web Client due to insufficient sanitization of specific attachment content during inline preview. An attacker can send a crafted email containing a malicious attachment that, when previewed by a user, executes arbitrary JavaScript within the victim's browser session. Successful exploitation may allow an attacker to perform unauthorized actions on behalf of the victim user, potentially leading to data exfiltration or unauthorized access to sensitive information.

An authorization bypass vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.17 due to improper authorization validation in delegated email sending functionality. An authenticated attacker can send specially crafted SOAP requests to impersonate another user and send emails without possessing the required delegation or send-as permissions. This occurs in the SaveDraftRequest SOAP handler.