CVE-2024-33533

An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0, issue 1 of 2. A reflected cross-site scripting (XSS) vulnerability has been identified in the Zimbra webmail admin interface. This vulnerability occurs due to inadequate input validation of the packages parameter, allowing an authenticated attacker to inject and execute arbitrary JavaScript code within the context of another user's browser session. By uploading a malicious JavaScript file and crafting a URL containing its location in the packages parameter, the attacker can exploit this vulnerability. Subsequently, when another user visits the crafted URL, the malicious JavaScript code is executed.

Published: 2024-08-12 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-33533 is rated Low Risk (27.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.26%). 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.

Exploit prediction scoring system (EPSS) score for CVE-2024-33533

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 2026-06-15 0.16% 0.26% +0.10%
2 2025-12-06 0.15% 0.16% +0.02%
3 2025-11-21 — 0.15% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-33533

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/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:L)
A normal user session is enough; they don’t have to be admin.
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.
 2.3 2.7 [email protected]
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/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:L)
A normal user session is enough; they don’t have to be admin.
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.
 2.3 2.7 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-33533

Affected software / configurations for CVE-2024-33533

Vendor Product Version Raw CPE
zimbra collaboration >= 10.0.0, < 10.0.8 cpe:2.3:a:zimbra:collaboration:*:*:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p0:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p1:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p10:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p11:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p12:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p13:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p14:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p15:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p16:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p19:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p2:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p20:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p21:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p23:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p24:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p24.1:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p25:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p26:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p27:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p3:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p30:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p31:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p32:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p33:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p34:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p35:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p36:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p37:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p38:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p39:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p4:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p5:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p6:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p7:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p7.1:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p8:*:*:*:*:*:*
zimbra collaboration 9.0.0 cpe:2.3:a:zimbra:collaboration:9.0.0:p9:*:*:*:*:*:*

References for CVE-2024-33533

cvelogic Threat Intelligence