CVE-2026-93641

Summary

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

Affected Software

VendorProductVersion RangeStatus
ZimbraZimbra Collaboration Suite (ZCS)0 < 10.1.21affected

Weaknesses

  • CWE-79: CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References