vulnerability / NVI-00007347 / Revision 1
ezsystems/ezplatform-richtext allows access to external entities in XML
OSV carries this publisher advisory for ezsystems/ezplatform-richtext. This is an aggregated source copy; consult the original publisher and compare update dates.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
ezsystems/ezplatform-richtext
source listedECOSYSTEM: introduced 2.3.0-beta1; fixed 2.3.26
### 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/5ba2a82cc3a
03 / Response
What to do next
- vendor patch
The original advisory lists fixed boundaries 2.3.26 for ezsystems/ezplatform-richtext. Confirm the publisher’s latest guidance.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database via OSV
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
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- GHSA-2jqj-5qv2-xvcg ↗
GitHub Advisory Database via OSV · vendor advisory
Observed . GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.