Cross-site scripting in Drupal - CVE-2026-108514
Published: October 14, 2026
Vulnerability identifier: #VU155776
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-108514
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary script in the context of the affected website.
The vulnerability exists due to insufficient sanitization of attributes in the Navigation module when processing user-supplied attribute values. A remote user can supply specially crafted attribute values to execute arbitrary script in the context of the affected website.
Exploitation requires a role with permission to enter HTML tags containing specific data attributes, or the administer menu permission.
Affected software
Drupal
How to mitigate CVE-2026-108514
Install security update from vendor's website.
Drupal - addressed in versions 10.6.19, 11.3.19, 11.4.10