medium5.4
CVE-2026-54717
Silverstripe CMS is an open source content management system.
Impact
Silverstripe CMS is an open source content management system. Prior to 6.2.1, page breadcrumbs in the CMS are vulnerable to cross-site scripting when viewed using the page list view, because page titles are rendered into the breadcrumb trail without being escaped. This issue is fixed in 6.2.1.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | silverstripe/cms | < 6.2.1 | 6.2.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-w3cp-g2pf-65wh
- https://github.com/silverstripe/silverstripe-cms/security/advisories/GHSA-w3cp-g2pf-65wh
- https://github.com/silverstripe/silverstripe-cms/pull/3175
- https://github.com/silverstripe/silverstripe-cms/commit/62f9912baa18c80304f3fa8b6eca71bb5dc2d21e
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/cms/CVE-2026-54717.yaml
- https://github.com/silverstripe/silverstripe-cms/releases/tag/6.2.1
- https://www.silverstripe.org/download/security-releases/cve-2026-54717