What is CVE-2022-37044?

CVE-2022-37044 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-08-12.

How severe is CVE-2022-37044?

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

XSS in Zimbra Collaboration

CVE-2022-37044

In Zimbra Collaboration Suite (ZCS) 8.8.15, the URL at /h/search?action accepts parameters called extra, title, and onload that are partially sanitised and lead to reflected XSS that allows executing arbitrary JavaScript on the victim's machine.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-08-12 · 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: 0.005 (42.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Zimbra Collaboration — versions 8.8.15

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2022-37044?: CVE-2022-37044 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-08-12.
How severe is CVE-2022-37044?: Medium severity. CVSS v3 base score is 6.1 out of 10.