What is CVE-2020-11737?

CVE-2020-11737 is a medium-severity vulnerability in Zimbra, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-05-05.

How severe is CVE-2020-11737?

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

XSS in Zimbra

CVE-2020-11737

A cross-site scripting (XSS) vulnerability in Web Client in Zimbra 9.0 allows a remote attacker to craft links in an E-Mail message or calendar invite to execute arbitrary JavaScript. The attack requires an A element containing an href attribute with a "www" substring (including the quotes) followed immediately by a DOM event listener such as onmouseover. This is fixed in 9.0.0 Patch 2.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.017 (75.2th percentile) — read the EPSS interpretation.

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.

Affected products

Zimbra — versions 9.0.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-11737?: CVE-2020-11737 is a medium-severity vulnerability in Zimbra, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-05-05.
How severe is CVE-2020-11737?: Medium severity. CVSS v3 base score is 6.1 out of 10.