CVE-2020-11737

Description

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.90% Top 30%
Vendor Advisory zimbra.com Vendor Advisory zimbra.com Vendor Advisory zimbra.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories vendor advisory
https://blog.zimbra.com/2020/05/new-zimbra-9-kepler-patch-2/ vendor advisory
https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P2 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-11737?
CVE-2020-11737 has been scored as a medium severity vulnerability.
How to fix CVE-2020-11737?
To fix CVE-2020-11737, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-11737 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-11737 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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