Advisory Published

CVE-2023-4554: XML External Entity (XXE) Processing

First published: Mon Jan 29 2024(Updated: )

Improper Restriction of XML External Entity Reference vulnerability in OpenText AppBuilder on Windows, Linux allows Server Side Request Forgery, Probe System Files. AppBuilder's XML processor is vulnerable to XML External Entity Processing (XXE), allowing an authenticated user to upload specially crafted XML files to induce server-side request forgery, disclose files local to the server that processes them. This issue affects AppBuilder: from 21.2 before 23.2.


Affected SoftwareAffected VersionHow to fix
All of
OpenText AppBuilder>=21.2<23.2
Any of
Linux Linux kernel
Microsoft Windows

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