Reflected cross-site scripting (XSS) In drupal/core
Description
Drupal cross-site scripting vulnerability Drupal 8.4.x versions before 8.4.5 and Drupal 7.x versions before 7.57 has a Drupal.checkPlain() JavaScript function which is used to escape potentially dangerous text before outputting it to HTML (as JavaScript output does not typically go through Twig autoescaping). This function does not correctly handle all methods of injecting malicious HTML, leading to a cross-site scripting vulnerability under certain circumstances. The PHP functions which Drupal provides for HTML escaping are not affected.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 packagist | 8.4.5, 7.57 | ||
packagist | 8.4.5, 7.57 |
Aliases
1. 2. 3. 4. 5.
References
1. 2. 3. 4. 5.