Silverstripe: XSS in breadcrumbs in page list view
Priority LOW 24CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00338 27th percentileScored 2026-11-07
Fix Fixed silverstripe-cms (silverstripe): 6.2.1silverstripe/cms (Packagist): 6.2.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| silverstripe | silverstripe-cms | before 6.2.1 | 6.2.1 | Patch available | CNA |
| — | silverstripe/cms (Packagist) | before 6.2.1 | 6.2.1 | Patch available | GHSA-w3cp-g2pf-65wh |
- silverstripe-cms Vendorsilverstripe Affected before 6.2.1 Fixed in 6.2.1 Patch available CNA
- silverstripe/cms (Packagist) Vendor— Affected before 6.2.1 Fixed in 6.2.1 Patch available GHSA-w3cp-g2pf-65wh
Remediation
- Fix · CNA silverstripe-cms (silverstripe) Fixed in 6.2.1
- Fix · GHSA-w3cp-g2pf-65wh silverstripe/cms (Packagist) Fixed in 6.2.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54717
- 2026-10-03 Alias added: GHSA-w3cp-g2pf-65wh
References
Other 7
- 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/silverstripe/silverstripe-cms/releases/tag/6.2.1
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/cms/CVE-2026-54717.yaml
- https://github.com/silverstripe/silverstripe-cms
- https://www.silverstripe.org/download/security-releases/cve-2026-54717
More silverstripe vulnerabilities
- TI-2007-02239 Unspecified vulnerability in the search functionality in SilverStripe 2.0.0 has unknown impact and attack vectors. CVSS 2.0HIGH 10.0
- TI-2019-09110 In SilverStripe through 4.3.3, a missing warning about leaving install.php in a public… CVSS 3.1CRITICAL 9.8
- TI-2019-09070 SQL injection vulnerability in silverstripe/restfulserver module 1.0.x before 1.0.9… CVSS 3.0CRITICAL 9.8
- TI-2019-04049 All versions of SilverStripe 3 prior to 3.6.7 and 3.7.3, and all versions of SilverStripe… CVSS 3.0CRITICAL 9.8
- TI-2022-17852 Silverstripe silverstripe/framework through 4.11 allows SQL Injection. CVSS 3.1HIGH 8.8
- TI-2020-07444 Silverstripe CMS through 4.5 can be susceptible to script execution from malicious upload… CVSS 3.1HIGH 8.8
Sources
- CVE-2026-54717 · CVE Program
- CVE-2026-54717 · NVD
- FIRST EPSS
- GHSA-w3cp-g2pf-65wh · GitHub Advisory Database · CC BY 4.0
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