CVE-2026-93641
An unauthenticated sender can forge a share notification that triggers stored XSS when a signed-in…
- Risk score
- 64/100
- CVSS
- 9.3 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 25 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.3 critical
- Remotely exploitable without logging in
References
Original description
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.
Last activity 25 Sep 2026. Patch Forecast updates every hour.