CVE-2015-5505: Codfront Labs HTTP Strict Transport Security

Medium severity, CVSS 6.8. EPSS: 1.6% chance of exploitation in the next 30 days.

The HTTP Strict Transport Security (HSTS) module 6.x-1.x before 6.x-1.1 and 7.x-1.x before 7.x-1.2 for Drupal does not properly implement the "include subdomains" directive, which causes the HSTS policy to not be applied to subdomains and allows man-in-the-middle attackers to have unspecified impact via unknown vectors.

Affected products

• Codfront Labs HTTP Strict Transport Security: version 6.x-1.0 only; version 6.x-1.x only; version 7.x-1.0 only; version 7.x-1.1 only

Published 2015-08-18. Last modified 2026-06-17.