What’s Vulnerable › Vulnerabilities

CVE-2024-28198: XML external entity (XXE) injection in OpenOLAT

• Severity: high (CVSS 7.5 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: 2024-03-11 · updated 2026-06-17
• Weakness: CWE-611

Description

OpenOlat is an open source web-based e-learning platform for teaching, learning, assessment and communication. By manually manipulating http requests when using the draw.io integration it is possible to read arbitrary files as the configured system user and SSRF. The problem is fixed in version 18.1.6 and 18.2.2. It is advised to upgrade to the latest version of 18.1.x or 18.2.x. Users unable to upgrade may work around this issue by disabling the Draw.io module or the entire REST API which will secure the system.

Affected products

• OpenOLAT: before 18.1.6 — fixed in 18.1.6

How to fix

Upgrade to a fixed version: OpenOLAT 18.1.6. Check the vendor advisory for mitigations.

References

• https://github.com/OpenOLAT/OpenOLAT/commit/23e6212e9412c3b099436159b8c8935321c91872
• https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-pqvm-h9mg-434c
• https://track.frentix.com/issue/OO-7553/XXE-injection-in-draw.io-endpoint
• https://github.com/OpenOLAT/OpenOLAT/commit/23e6212e9412c3b099436159b8c8935321c91872
• https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-pqvm-h9mg-434c
• https://track.frentix.com/issue/OO-7553/XXE-injection-in-draw.io-endpoint

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