CVEvulnerability
CVE-2026-33370
6.1 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
Description
An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. A stored cross-site scripting (XSS) vulnerability exists in the Zimbra Briefcase feature due to insufficient sanitization of specific uploaded file types. When a user opens a publicly shared Briefcase file containing malicious scripts, the embedded JavaScript executes in the context of the user's session. This allows an attacker to run arbitrary scripts, potentially leading to data exfiltration or other unauthorized actions on behalf of the victim user.
Affected configurations
• synacor zimbra collaboration suite (>= 10.0.0 < 10.1.16)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://wiki.zimbra.com/wiki/Security_Center Release Notes, Vendor Advisory
- https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes Release Notes
- https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy Product
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory