View online: https://www.drupal.org/sa-contrib-2026-236 Project: Bootstrap [1] Project machine name: bootstrap Date: 2026-October-21 Security risk: *Moderately critical* 13 ∕ 25 AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Default [2] Vulnerability: Cross-site scripting Affected versions: <3.45.0 CVE IDs: CVE-2026-114538 Description: Provides the Bootstrap front-end framework as a Drupal theme. Bootstrap theme did not sufficiently filter certain attributes, which could lead to a cross-site scripting vulnerability. This vulnerability is mitigated by only affecting the optional tooltip and popover features. A short-term mitigation is to disable tooltips and popovers on admin/appearance/settings/bootstrap or admin/appearance/settings/my_bootstrap_subtheme. Solution: Install the latest version: * If you use Bootstrap 8.x-3.x, upgrade to Bootstrap 8.x-3.45 [3] The 5.0.x branch of Bootstrap is not affected. Reported By: * Ra Mänd (ram4nd) [4], provisional member of the Drupal Security Team Fixed By: * Joseph Olstad (joseph.olstad) [5] * Ra Mänd (ram4nd) [6], provisional member of the Drupal Security Team Coordinated By: * Swan Kalata (akalata) [7] of the Drupal Security Team * Greg Knaddison (greggles) [8] of the Drupal Security Team * Ra Mänd (ram4nd) [9], provisional member of the Drupal Security Team ------------------------------------------------------------------------------ Contribution record [10] [1] https://www.drupal.org/project/bootstrap [2] https://www.drupal.org/drupal-security-team/security-risk-levels-defined [3] https://www.drupal.org/project/bootstrap/releases/8.x-3.45 [4] https://www.drupal.org/u/ram4nd [5] https://www.drupal.org/u/josepholstad [6] https://www.drupal.org/u/ram4nd [7] https://www.drupal.org/u/akalata [8] https://www.drupal.org/u/greggles [9] https://www.drupal.org/u/ram4nd [10] https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal....