SA-CONTRIB-2026-094: XSS
The Entity Browser module allows you to select entities from entity reference fields using a custom entity browser widget. The module doesn't sufficiently sanitize the the tab titles, resulting in a stored cross-site scripting (XSS) vulnerability. The vulnerability is mitigated by the fact an attacker must be able to insert HTML with specific attributes on a page that is displaying an entity browser.
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
drupal/entity_browserto a version that resolves this vulnerability.Fixed in 8.x-2.16