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GHSA-2jqj-5qv2-xvcg
No affected components available
Impact
This security advisory resolves a vulnerability in the RichText field type. By entering a maliciously crafted input into the RichText XML, an attacker could perform an attack using XML external entity (XXE) injection, which might be able to read files on the server. To exploit this vulnerability the attacker would need to already have edit permission to content with RichText fields, which typically means Editor role or higher. The fix removes unsafe elements from XML code, while preserving safe elements.
If you have a stored XXE attack in your content drafts, the fix prevents it from extracting data both during editing and preview. However, if such an attack has already been published and the result is stored in the content, it is unfortunately not possible to detect and remove it by automatic means.
Credits
This vulnerability was discovered and reported to Ibexa by Dennis Henke, Thorsten Niephaus, Marat Aytuganov, and Stephan Sekula of Compass Security Deutschland GmbH. We thank them for reporting it responsibly to us.
Patches
- See "Patched versions"
- https://github.com/ezsystems/ezplatform-richtext/commit/5ba2a82cc3aa6235ecfe87278e20c1451d9df913
Workarounds
- Exploitation requires edit access to RichText content. If you can trust your editors, and you don't grant edit permission to any externals, you are not at risk in practice.
References
- https://developers.ibexa.co/security-advisories/ibexa-sa-2025-002-xxe-vulnerability-in-richtext
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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