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CVE-2025-48700· synacor / zimbra collaboration suite (zcs)· CWE-79

Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability

Exploited in the wild. Listed by CISA on 2026-04-20; known to be used by ransomware.

1.7%likelihood of exploitation, next 30 days
78%of all CVEs are less likely
Nonecheck to confirm it

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that could allow attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information.

No ready check is stored for this CVE. Confirm it by hand from the references.

References

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