What is CVE-2026-54717?

CVE-2026-54717 is a medium-severity vulnerability in Silverstripe Silverstripe-cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-06.

How severe is CVE-2026-54717?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Silverstripe Silverstripe-cms

CVE-2026-54717

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 tra…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Silverstripe Silverstripe-cms — versions < 6.2.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54717?: CVE-2026-54717 is a medium-severity vulnerability in Silverstripe Silverstripe-cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-06.
How severe is CVE-2026-54717?: Medium severity. CVSS v3 base score is 5.4 out of 10.