Answer in brief
CVE-2026-54720 records a Medium severity (CVSS 5.4) vulnerability in Silverstripe Framework: Possible XSS attack through media embed. The current sources do not mark it as known exploited. The current feed maps silverstripe/framework (composer). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps silverstripe/framework (composer). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| silverstripe/frameworkcomposer | <6.2.2 | 6.2.2 |
Published upstream
Jul 1, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Aug 27, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
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/
Quoted source text, attributed separately from HOL analysis.