CVE-2026-58591: Colorbox Project Colorbox

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Colorbox allows Cross-Site Scripting (XSS). This issue affects Colorbox versions: from 0.0.0 to 2.1.5, from 0.0.0 to 2.2.0.

Affected products

• Colorbox Project Colorbox: before 2.1.5 (fixed in 2.1.5); version 2.2.0 only

Published 2026-07-10. Last modified 2026-07-14.