CVE-2026-93642 — Zimbra Collaboration Suite Modern Web Client Stored Cross-Site Scripting via Forged Share Invitation

CVE-2026-93642

Zimbra Collaboration Suite Modern Web Client Stored Cross-Site Scripting via Forged Share Invitation PUBLISHED

Description (CNA)

An unauthenticated sender can forge a share notification that triggers stored XSS when a signed-in Zimbra Modern recipient clicks Accept Share, allowing the attacker to access mailbox data and act as the victim.

Affected (CNA)

Vendor / product	Versions
Zimbra / Zimbra Collaboration Suite (ZCS)	affected 0 before 10.1.21

CWE

CWE-79

References

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.