Medium severity · published May 5, 2020
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…
6.1
CVSS
1.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZI
Zimbra · Zimbra
9.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-11737
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-11737
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
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
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