A AegiFlow
MEDIUMCVSS 5.4EPSS 0.3%

CVE-2026-54720

Silverstripe Framework: Possible XSS attack through media embed

Published
2026-08-27
Modified
2026-08-27
EPSS percentile
18%
Aliases
GHSA-gvrw-qqp5-jgc5
Sources
github-advisory

Summary

### Impact The "Insert media from web" functionality in the CMS is vulnerable to XSS from a specially crafted embed. ### Reported by Jack Wallace from Bastion Security

Affected packages

EcosystemPackageAffected versionsFixed versions
Packagistsilverstripe/framework—6.2.2

Remediation: Upgrade to 6.2.2 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.