MediumGHSA-w3cp-g2pf-65whCVE-2026-54717
Silverstripe: XSS in breadcrumbs in page list view
Published 6 Aug 2026 · Updated 6 Aug 2026
Affected package
silverstripe/cmsComposer
- Affected
- <6.2.1
- Fixed in
- 6.2.1
Update to the fixed version for your release line, for example:
composer require silverstripe/cms:^6.2.1Details
Impact
Page breadcrumbs in the CMS are vulnerable to XSS when viewed using the page list view
Reporter
Fase Rais Baradika
Is GHSA-w3cp-g2pf-65wh in any of your client repos?
Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected silverstripe/cms, and gives you the command that fixes it.
References
- Linkgithub.com/silverstripe/silverstripe-cms/security/advisories/GHSA-w3cp-g2pf-65wh
- Linkgithub.com/silverstripe/silverstripe-cms/pull/3175
- Linkgithub.com/silverstripe/silverstripe-cms/commit/62f9912baa18c80304f3fa8b6eca71bb5dc2d21e
- Linkgithub.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/cms/CVE-2026-54717.yaml
- Packagegithub.com/silverstripe/silverstripe-cms
- Linkgithub.com/silverstripe/silverstripe-cms/releases/tag/6.2.1
- Linkwww.silverstripe.org/download/security-releases/cve-2026-54717
Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.