CVE-2020-13688: Drupal

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Cross-site scripting vulnerability in l Drupal Core allows an attacker could leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. This issue affects: Drupal Core 8.8.X versions prior to 8.8.10; 8.9.X versions prior to 8.9.6; 9.0.X versions prior to 9.0.6.

Affected products

• Drupal Drupal: from 8.8.0, before 8.8.10 (fixed in 8.8.10); from 8.9.0, before 8.9.6 (fixed in 8.9.6); from 9.0.0, before 9.0.6 (fixed in 9.0.6)

Published 2021-06-11. Last modified 2026-06-17.