Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2025-47778
CVE-2025-47778:
PHP vulnerability analysis and mitigation
Overview
Sulu, an open-source PHP content management system based on the Symfony framework, contains a security vulnerability (CVE-2025-47778) that affects versions 2.5.21, 2.6.5, and 3.0.0-alpha1. The vulnerability allows admin users to upload SVG files that can load external data via XML DOM library, potentially enabling insecure XML External Entity References (GitHub Advisory).
Technical details
The vulnerability is classified as CWE-611 (Improper Restriction of XML External Entity Reference). The issue stems from the SvgFileInspector component which processes uploaded SVG files. The vulnerability has been assigned a CVSS v4.0 score of 6.1 (MEDIUM) with the vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U (NVD).
Impact
When exploited, this vulnerability could allow an authenticated admin user to perform XML External Entity (XXE) attacks through SVG file uploads. This could potentially lead to unauthorized access to external data and system resources (GitHub Advisory).
Mitigation and workarounds
The vulnerability has been patched in versions 2.6.9, 2.5.25, and 3.0.0-alpha3. For users unable to upgrade immediately, a manual workaround is available by patching the affected file src/Sulu/Bundle/MediaBundle/FileInspector/SvgFileInspector.php to replace loadXML($svg, \LIBXML_NOENT | \LIBXML_DTDLOAD) with loadXML($data, LIBXML_NONET) (GitHub Advisory).
Additional resources
Source: This report was generated using AI
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