CVE-2023-5631

Roundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.

  • Published Oct 18, 2023
  • CVSS 5.4 medium
  • 75.9% chance of exploitation in the next 30 days (EPSS)
  • In CISA's Known Exploited Vulnerabilities catalog
  • Public exploit code is available
  • A fix is available

Affected software

CVE-2023-5631 at the National Vulnerability Database