CVE-2024-45516

An issue was discovered in Zimbra Collaboration (ZCS) 9.0.0 before Patch 43, 10.0.x before 10.0.12, 10.1.x before 10.1.4, and 8.8.15 before Patch 47. A Cross-Site Scripting (XSS) vulnerability in the Zimbra Classic UI allows attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information. This issue arises from insufficient sanitization of HTML content, including malformed <img> tags with embedded JavaScript. The vulnerability is triggered when a user views a specially crafted email in the Classic UI, requiring no additional user interaction.

Published: 2025-05-14 Last update: 2025-06-11 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-45516 is rated Moderate Risk (42.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.28%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-45516

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 2026-03-10 0.16% 0.28% +0.12%
2 2026-02-28 0.12% 0.16% +0.04%
3 2025-10-13 — 0.12% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-45516

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-45516

Affected software / configurations for CVE-2024-45516

Vendor Product Version Raw CPE
synacor zimbra_collaboration_suite >= 10.0.0, < 10.0.12 cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
synacor zimbra_collaboration_suite >= 10.1.0, < 10.1.4 cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:-:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p1:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p10:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p11:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p12:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p13:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p14:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p15:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p16:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p17:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p18:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p19:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p2:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p20:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p21:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p22:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p23:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p24:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p25:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p26:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p27:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p28:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p29:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p3:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p30:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p31:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p31.1:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p32:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p33:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p34:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p35:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p36:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p37:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p38:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p39:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p4:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p40:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p41:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p42:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p43:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p44:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p45:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p46:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p5:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p6:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p7:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p8:*:*:*:*:*:*
synacor zimbra_collaboration_suite 8.8.15 cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p9:*:*:*:*:*:*
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:*:*:*:*:*:*

References for CVE-2024-45516

cvelogic Threat Intelligence