Actively exploited · Published Jun 9, 2020 · Assigned by mitre
CVE-2020-13965
Medium 6.3 Exploited
In plain English
A medium-severity security flaw in Webmail from Roundcube. Attackers are actively exploiting it in the wild (listed by CISA on June 26, 2024). The chance it is exploited in the next 30 days is estimated at 76.6% (higher than 99.5% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Jul 17, 2024.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | roundcube | 1.4.5+dfsg.1-1 | DEBIAN-CVE-2020-13965 |
| Debian:13 | roundcube | 1.4.5+dfsg.1-1 | DEBIAN-CVE-2020-13965 |
| Debian:14 | roundcube | 1.4.5+dfsg.1-1 | DEBIAN-CVE-2020-13965 |
Affected products (as reported)
Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
References
- https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 x_refsource_MISC
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.12 x_refsource_MISC
- https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3 x_refsource_MISC
- https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 x_refsource_MISC
- https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 x_refsource_CONFIRM
- DSA-4700 vendor-advisory, x_refsource_DEBIAN
- FEDORA-2020-2a1a6a8432 vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-aeffd92b77 vendor-advisory, x_refsource_FEDORA
- https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-13965 government-resource