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)
Published · last modified .
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: 0.018 (77.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.000
Affected products
- Zimbra — versions 9.0.0
Weakness classification (CWE)
References
- wiki.zimbra.com/wiki/Zimbra_Security_Advisories (Vendor Advisory)
- blog.zimbra.com/2020/05/new-zimbra-9-kepler-patch-2/ (Vendor Advisory)
- wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P2 (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.