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Medium · 5.4 CVE-2026-54720 EUVD-2026-41144GHSA-gvrw-qqp5-jgc5

Silverstripe Framework: Possible XSS attack through media embed

Published Jul 1, 2026 · Updated Jul 2, 2026 · Assigned by GitHub_M

Description

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/

Affected products

VendorProductAffectedFixed
silverstripe silverstripe-framework < 6.2.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist silverstripe/framework < 6.2.2 6.2.2 GHSA-gvrw-qqp5-jgc5

References