PT-2025-15981 · Silverstripe · Silverstripe/Framework

James Nicoll

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Published

2025-04-10

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Updated

2025-09-04

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CVE-2025-30148

CVSS v3.1

5.4

Medium

VectorAV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions: Silverstripe Framework versions prior to 5.3.23
Description: A bad actor with access to edit content in the CMS could send a specifically crafted encoded payload to the server, which could be used to inject a JavaScript payload on the front end of the site. The payload would be sanitized on the client-side, but server-side sanitization doesn't catch it. The server-side sanitization logic has been updated to sanitize against this attack.
Recommendations: For versions prior to 5.3.23, update to version 5.3.23 to fix the issue.

Exploit

Fix

XSS

Weakness Enumeration

Related Identifiers

CVE-2025-30148
GHSA-RHX4-HVX9-J387

Affected Products

Silverstripe/Framework