What’s Vulnerable › Vulnerabilities
CVE-2020-13666
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-05-05 · updated 2026-06-17
- Weakness: CWE-79
Description
Cross-site scripting vulnerability in Drupal Core. Drupal AJAX API does not disable JSONP by default, allowing for an XSS attack. This issue affects: Drupal Drupal Core 7.x versions prior to 7.73; 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: from 7.0 before 7.73; from 8.8.0 before 8.8.10; from 8.9.0 before 8.9.6; from 9.0.0 before 9.0.6 — fixed in 7.73, 8.8.10, 8.9.6, 9.0.6
How to fix
Upgrade to a fixed version: Drupal 7.73, 8.8.10, 8.9.6, 9.0.6. Check the vendor advisory for mitigations.
References
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