Medium 5.4Published Jul 1, 2026

CVE-2026-54720Silverstripe Framework: Possible XSS attack through media embed

Updated under an hour ago (Oct 27, 2026, 11:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for silverstripe-framework

Exploited in the last 30 days

Silverstripe Framework is a PHP framework which powers the Silverstripe CMS. In versions prior to 6.2.2, the "Insert media from web" functionality in the CMS is vulnerable to XSS from a specially crafted embed. This issue was fixed in version 6.2.2/

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

silverstripe silverstripe-framework silverstripe:framework (from the name)	before 6.2.2	CNA record

References

References

https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-gvrw-qqp5-jgc5	x-refsource-confirm
https://www.silverstripe.org/download/security-releases/cve-2026-54720	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.