CVE-2020-35730

Known Exploited

Description

An XSS issue was discovered in Roundcube Webmail before 1.2.13, 1.3.x before 1.3.16, and 1.4.x before 1.4.10. The attacker can send a plain text e-mail message, with JavaScript in a link reference element that is mishandled by linkref_addindex in rcube_string_replacer.php.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 61.05% Top 5%
KEV Since 
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://roundcube.net/download/ product
https://github.com/roundcube/roundcubemail/compare/1.4.9...1.4.10 patch
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978491 issue tracking mailing list
https://www.alexbirnberg.com/roundcube-xss.html broken link
https://github.com/roundcube/roundcubemail/releases/tag/1.4.10 release notes
https://github.com/roundcube/roundcubemail/releases/tag/1.3.16 release notes
https://github.com/roundcube/roundcubemail/releases/tag/1.2.13 release notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HMLIZWKMTRCLU7KZLEQHELS4INXJ7X5Q/ mailing list release notes vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCEU4BM5WGIDJWP6Z4PCH62ZMH57QYM2/ mailing list release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-35730?
CVE-2020-35730 has been scored as a medium severity vulnerability.
How to fix CVE-2020-35730?
To fix CVE-2020-35730, 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-2020-35730 being actively exploited in the wild?
It is confirmed that CVE-2020-35730 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~61% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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