What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-29 · updated 2026-06-17
• Weakness: CWE-611

Description

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 products

• OpenText AppBuilder: from 21.2 before 23.2 — fixed in 23.2

How to fix

Upgrade to a fixed version: OpenText AppBuilder 23.2. Check the vendor advisory for mitigations.

References

• https://support.opentext.com/csm?id=ot_kb_search&kb_category=61648712db61781068cfd6c4e296197b
• https://support.opentext.com/csm?id=ot_kb_search&kb_category=61648712db61781068cfd6c4e296197b

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