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CVE-2022-34169 PoC — Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets

Source
Associated Vulnerability
Title:Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets (CVE-2022-34169)
Description:The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode. Users are recommended to update to version 2.7.3 or later. Note: Java runtimes (such as OpenJDK) include repackaged copies of Xalan.
Description
A PoC for CVE-2022-34169, for the SU_PWN challenge from SUCTF 2025
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