MediumGHSA-585j-5449-mf5mCVE-2017-6927

Drupal cross-site scripting vulnerability

Published 14 May 2022 · Updated 23 Apr 2024

Affected packages

drupal/coreComposer

Affected: >=8.4.0 <8.4.5
Fixed in: 8.4.5

Update to the fixed version for your release line, for example:composer require drupal/core:^8.4.5

drupal/coreComposer

Affected: >=7.0 <7.57
Fixed in: 7.57

Update to the fixed version for your release line, for example:composer require drupal/core:^7.57

drupal/drupalComposer

Affected: >=8.4.0 <8.4.5
Fixed in: 8.4.5

Update to the fixed version for your release line, for example:composer require drupal/drupal:^8.4.5

drupal/drupalComposer

Affected: >=7.0 <7.57
Fixed in: 7.57

Update to the fixed version for your release line, for example:composer require drupal/drupal:^7.57

Details

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.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.