CVE-2016-9924
CriticalSummary
Zimbra Collaboration Suite (ZCS) before version 8.7.4 allows remote attackers to conduct XML External Entity (XXE) attacks.
Risk Assessment
XXE attacks can lead to the disclosure of sensitive information and potential remote code execution, posing a serious security threat to the system.
Recommendation
It is recommended to upgrade Zimbra Collaboration Suite to version 8.7.4 or later to mitigate the risk associated with this vulnerability.
Other vulnerabilities in Zimbra Collaboration Suite (ZCS)
See all- CVE-2017-6821Critical
Directory traversal vulnerability in Zimbra Collaboration Suite (ZCS) before version 8.7.6 allows attackers to have unspecified impact via unknown vectors.
- CVE-2017-6813Critical
A service provided by Zimbra Collaboration Suite (ZCS) before version 8.7.6 fails to require needed privileges before performing a few requested operations.
- CVE-2026-93639High
A missing authorization vulnerability in Zimbra Collaboration Suite (ZCS) allows a delegated administrator with no explicit administrative grants to overwrite global Zimlet configuration through ConfigureZimletRequest. The configuration can add an attacker-controlled domain to the proxy allowlist of the default class of service; if a signed-in user opens a crafted /service/proxy URL, Zimbra serves attacker-controlled HTML under its own origin, enabling mailbox data theft and authenticated actions as the victim.
Original NVD description (English source)
Zimbra Collaboration Suite (ZCS) before 8.7.4 allows remote attackers to conduct XML External Entity (XXE) attacks.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS