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GHSA-chfm-68vv-pvw5
No affected components available
Impact
When performing XSLT transformations XMLUnit for Java did not disable XSLT extension functions by default. Depending on the XSLT processor being used this could allow arbitrary code to be executed when XMLUnit is used to transform data with a stylesheet who's source can not be trusted. If the stylesheet can be provided externally this may even lead to a remote code execution.
Patches
Users are advised to upgrade to XMLUnit for Java 2.10.0 where the default has been changed by means of https://github.com/xmlunit/xmlunit/commit/b81d48b71dfd2868bdfc30a3e17ff973f32bc15b
Workarounds
XMLUnit's main use-case is performing tests on code that generates or processes XML. Most users will not use it to perform arbitrary XSLT transformations.
Users running XSLT transformations with untrusted stylesheets should explicitly use XMLUnit's APIs to pass in a pre-configured TraX TransformerFactory with extension functions disabled via features and attributes. The required setFactory or setTransformerFactory methods have been available since XMLUnit for Java 2.0.0.
References
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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