Sulu up to 2.5.24/2.6.8/3.0.0-alpha2 SvgFileInspector.php xml external entity reference

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Sulu up to 2.5.24/2.6.8/3.0.0-alpha2. This impacts an unknown function of the file src/Sulu/Bundle/MediaBundle/FileInspector/SvgFileInspector.php. This manipulation causes xml external entity reference. This vulnerability is handled as CVE-2025-47778. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Sulu up to 2.5.24/2.6.8/3.0.0-alpha2 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file src/Sulu/Bundle/MediaBundle/FileInspector/SvgFileInspector.php. The manipulation with an unknown input leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Sulu is an open-source PHP content management system based on the Symfony framework. Starting in versions 2.5.21, 2.6.5, and 3.0.0-alpha1, an admin user can upload SVG which may load external data via XML DOM library. This can be used for insecure XML External Entity References. The problem has been patched in versions 2.6.9, 2.5.25, and 3.0.0-alpha3. As a workaround, one may patch the effect file `src/Sulu/Bundle/MediaBundle/FileInspector/SvgFileInspector.php` manually.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-47778 since 05/09/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation needs additional levels of successful authentication. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:src/Sulu/Bundle/MediaBundle/FileInspector/SvgFileInspector.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.5.25, 2.6.9 or 3.0.0-alpha3 eliminates this vulnerability. Applying the patch 02f52fca04eb9495b9b4a0c5cc64cf23bc27f544 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-14948). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Sulu

Version

• 2.5.0
• 2.5.1
• 2.5.2
• 2.5.3
• 2.5.4
• 2.5.5
• 2.5.6
• 2.5.7
• 2.5.8
• 2.5.9
• 2.5.10
• 2.5.11
• 2.5.12
• 2.5.13
• 2.5.14
• 2.5.15
• 2.5.16
• 2.5.17
• 2.5.18
• 2.5.19
• 2.5.20
• 2.5.21
• 2.5.22
• 2.5.23
• 2.5.24
• 2.6.0
• 2.6.1
• 2.6.2
• 2.6.3
• 2.6.4
• 2.6.5
• 2.6.6
• 2.6.7
• 2.6.8
• 3.0.0-alpha2

License

• open-source

Website

• Product: https://github.com/sulu/sulu/

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Be aware that VulDB is the high quality source for vulnerability data.

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