What is CVE-2022-45913?

CVE-2022-45913 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-01-06.

How severe is CVE-2022-45913?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Zimbra Collaboration

CVE-2022-45913

An issue was discovered in Zimbra Collaboration (ZCS) 9.0. XSS can occur via one of attributes in webmail URLs to execute arbitrary JavaScript code, leading to information disclosure.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-01-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Zimbra Collaboration — versions 8.8.15, 9.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wiki.zimbra.com/wiki/Zimbra_Security_Advisories (Vendor Advisory)
wiki.zimbra.com/wiki/Security_Center (Vendor Advisory)

Frequently asked questions

What is CVE-2022-45913?: CVE-2022-45913 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-01-06.
How severe is CVE-2022-45913?: Medium severity. CVSS v3 base score is 6.1 out of 10.