In Zimbra Collaboration (ZCS) 9.0 and 10.0, a vulnerability in the Webmail Modern UI allows execution of stored Cross-Site Scripting (XSS) payloads. An attacker with administrative access to the Zimbra Administration Panel can inject malicious JavaScript code while configuring an email account. This injected code is stored on the server and executed in the context of the victim's browser when interacting with specific elements in the web interface. (The vulnerability can be mitigated by properly sanitizing input parameters to prevent the injection of malicious code.)
Conclusion & alert: CVE-2024-45194 is rated Low Risk (27.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-21 | 0.39% | 0.08% | -0.31% |
| 2 | 2025-11-18 | 0.07% | 0.39% | +0.32% |
| 3 | 2025-10-13 | — | 0.07% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.8 | 3.1 | MEDIUM |
|
1.7 | 2.7 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| synacor | zimbra_collaboration_suite | >= 10.0.0, < 10.0.9 | cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:-:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p1:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p10:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p11:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p12:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p13:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p14:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p15:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p16:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p17:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p18:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p19:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p2:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p20:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p21:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p22:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p23:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p24:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p24.1:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p25:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p26:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p27:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p28:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p29:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p3:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p30:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p31:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p32:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p33:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p34:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p35:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p36:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p37:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p38:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p39:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p4:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p40:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p5:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p6:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p7:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p8:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 9.0.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:9.0.0:p9:*:*:*:*:*:* |
| synacor | zimbra_collaboration_suite | 10.1.0 | cpe:2.3:a:synacor:zimbra_collaboration_suite:10.1.0:*:*:*:*:*:*:* |