CVE-2017-6927

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.

• CWE-79

• http://www.securityfocus.com/bid/103138Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2018/02/msg00030.htmlMailing List, Third Party Advisory
• https://www.debian.org/security/2018/dsa-4123Third Party Advisory
• https://www.drupal.org/sa-core-2018-001Vendor Advisory
• http://www.securityfocus.com/bid/103138Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2018/02/msg00030.htmlMailing List, Third Party Advisory
• https://www.debian.org/security/2018/dsa-4123Third Party Advisory
• https://www.drupal.org/sa-core-2018-001Vendor Advisory

Published

Mar 1, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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