CVE-2020-13965: Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability

CVE-2020-13965 · Severity: critical · CVSS 6.1 · Exploited in the wild · Published 2024-06-26

Roundcube Webmail contains a cross-site scripting (XSS) vulnerability when handling XML attachments. The application incorrectly allows text/xml files to be previewed, enabling remote attackers to execute malicious scripts in the context of the user's session via a specially crafted XML file.

Technologies: Roundcube Webmail. Vendors: Roundcube.

Quick answers

Is CVE-2020-13965 exploited in the wild?
Yes. CVE-2020-13965 is known to be exploited in the wild, first recorded on 26 June 2024. Treat it as urgent.
How severe is CVE-2020-13965?
Critical severity, with a CVSS score of 6.1, published 26 June 2024.
Which products and versions are affected?
Roundcube Webmail before 1.3.12, 1.4.x before 1.4.5.
Is there a fix for CVE-2020-13965?
A patch was published on 2020-06-02: Security updates 1.4.5 and 1.3.12 released by vendor. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2020-13965 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2020-13965?
Check whether you run Roundcube Webmail. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Roundcube Webmail before 1.3.12, 1.4.x before 1.4.5

Timeline

  • 2020-06-02: patched: Security updates 1.4.5 and 1.3.12 released by vendor.
  • 2024-06-26: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.

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