CVE-2020-13965

Known Exploited Public Exploit

Description

An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview.

Categories

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 85.11% Top 5%
KEV Since 
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory roundcube.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 third party advisory release notes
https://github.com/roundcube/roundcubemail/releases/tag/1.3.12 third party advisory release notes
https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3 third party advisory patch
https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 third party advisory patch
https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 vendor advisory
https://www.debian.org/security/2020/dsa-4700 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ mailing list vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ mailing list vendor advisory
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-13965?
CVE-2020-13965 has been scored as a medium severity vulnerability.
How to fix CVE-2020-13965?
To fix CVE-2020-13965, 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-2020-13965 being actively exploited in the wild?
It is confirmed that CVE-2020-13965 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~85% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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