UpHeron
All vulnerabilities

Servers and applications

CVE-2020-13965

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.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 26 Jun 2024.

Severity
Medium 6.1
Published
9 Jun 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.3.12, 1.4.5
Sources
NVD

Affected software

SoftwareAffected versions
RoundcubeServers and applications · cpe:a:roundcube:webmail
  • Every version before 1.3.12
  • From 1.4.0 before 1.4.5

Known exploited

CISA name
Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
17 Jul 2024
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-13965
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-13965