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CVE-2023-30537: XWIKI-20280: Improved link display for FlamingoThemesCode.WebHomeSheet · xwiki/xwiki-platform@df596f1

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with the right to add an object on a page can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of the styles properties FlamingoThemesCode.WebHome. This page is installed by default. The vulnerability has been patched in XWiki versions 13.10.11, 14.4.7 and 14.10.

CVE
#csrf#vulnerability#web#mac#js#java#auth

@@ -19,21 +19,46 @@ */ package org.xwiki.flamingo;
import java.util.List;
import javax.script.ScriptContext;
import org.jsoup.nodes.Document; import org.jsoup.nodes.Element; import org.junit.jupiter.api.BeforeEach; import org.junit.jupiter.api.Test; import org.xwiki.localization.macro.internal.TranslationMacro; import org.xwiki.model.reference.DocumentReference; import org.xwiki.model.script.ModelScriptService; import org.xwiki.query.Query; import org.xwiki.query.script.QueryManagerScriptService; import org.xwiki.rendering.RenderingScriptServiceComponentList; import org.xwiki.rendering.internal.configuration.DefaultExtendedRenderingConfiguration; import org.xwiki.rendering.internal.configuration.RenderingConfigClassDocumentConfigurationSource; import org.xwiki.rendering.internal.macro.message.ErrorMessageMacro; import org.xwiki.script.ScriptContextManager; import org.xwiki.script.service.ScriptService; import org.xwiki.security.authorization.AuthorizationManager; import org.xwiki.security.authorization.Right; import org.xwiki.security.script.SecurityScriptServiceComponentList; import org.xwiki.test.annotation.ComponentList; import org.xwiki.test.page.HTML50ComponentList; import org.xwiki.test.page.PageTest; import org.xwiki.test.page.TestNoScriptMacro; import org.xwiki.test.page.XWikiSyntax21ComponentList; import org.xwiki.wiki.script.WikiManagerScriptServiceComponentList;
import com.xpn.xwiki.XWikiException; import com.xpn.xwiki.doc.XWikiDocument; import com.xpn.xwiki.objects.BaseObject;
import static javax.script.ScriptContext.GLOBAL_SCOPE; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.mockito.ArgumentMatchers.any; import static org.mockito.ArgumentMatchers.anyString; import static org.mockito.ArgumentMatchers.eq; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.when;
/** * Test of the {@code FlamingoThemesCode.WebHomeSheet} page. @@ -46,25 +71,101 @@ @HTML50ComponentList @XWikiSyntax21ComponentList @RenderingScriptServiceComponentList @SecurityScriptServiceComponentList @WikiManagerScriptServiceComponentList @ComponentList({ ErrorMessageMacro.class, TranslationMacro.class, TestNoScriptMacro.class, DefaultExtendedRenderingConfiguration.class, RenderingConfigClassDocumentConfigurationSource.class RenderingConfigClassDocumentConfigurationSource.class, ModelScriptService.class }) class WebHomeSheetPageTest extends PageTest { private static final DocumentReference WEBHOME_SHEET = new DocumentReference("xwiki", "FlamingoThemesCode", “WebHomeSheet”);
private static final DocumentReference NEW_THEME_DOCUMENT_REFERENCE = new DocumentReference("xwiki", "Space", “NewTheme”);
private QueryManagerScriptService queryManagerScriptService;
private AuthorizationManager authorizationManager;
private ScriptContext scriptContext;
@BeforeEach void setUp() throws Exception { this.queryManagerScriptService = this.componentManager.registerMockComponent(ScriptService.class, "query", QueryManagerScriptService.class, false); this.authorizationManager = this.componentManager.getInstance(AuthorizationManager.class); this.scriptContext = this.oldcore.getMocker().<ScriptContextManager>getInstance(ScriptContextManager.class) .getCurrentScriptContext(); }
@Test void createAction() throws Exception { this.request.put("newThemeName", “some content\"/}}{{noscript/}}”); this.request.put("form_token", “1”); this.request.put("action", “create”);
Document document = this.renderHTMLPage(new DocumentReference("xwiki", "FlamingoThemesCode", “WebHomeSheet”)); Document document = renderHTMLPage(WEBHOME_SHEET);
assertEquals("platform.flamingo.themes.home.create.csrf [some content\"/}}{{noscript/}}]", document.select(“.box.errormessage”).text()); }
@Test void listAvailableThemes() throws Exception { loadPage(new DocumentReference("xwiki", “FlamingoThemes", “Charcoal”)); initNewTheme();
// Mock the database. Query query = mock(Query.class); when(this.queryManagerScriptService.xwql(“from doc.object(FlamingoThemesCode.ThemeClass) obj WHERE doc” + “.fullName <> ‘FlamingoThemesCode.ThemeTemplate’ ORDER BY doc.name”)).thenReturn(query); when(query.setWiki(anyString())).thenReturn(query); when(query.execute()).thenReturn(List.of(“Space.NewTheme”));
// Allow the current user to have access to the resources. when(this.authorizationManager.hasAccess(eq(Right.VIEW), any(), eq(NEW_THEME_DOCUMENT_REFERENCE))) .thenReturn(true); this.scriptContext.setAttribute(“hasAdmin", true, GLOBAL_SCOPE);
Document document = renderHTMLPage(WEBHOME_SHEET);
// Validate the links and styles. Element newThemeHeader = document.select(“h3”).get(1); String newThemeHeaderText = newThemeHeader.text(); String newThemeHeaderLinkHref = newThemeHeader.selectFirst(“a”).attr(“href”); assertEquals("]] {{noscript}}println(\"Hello from title!\”){{/noscript}}", newThemeHeaderText); assertEquals(“Space.NewTheme", newThemeHeaderLinkHref);
String newThemeMockupPageStyle = document.select(“.mockup-page”).get(1).attr(“style”); assertEquals(“background-color: {{/html}} {{noscript}}println(\"Hello from body-bg!\”){{/noscript}} \"/>” + “<script>…</script/>", newThemeMockupPageStyle); }
/** * Creates a new page describing a theme. * * @throws XWikiException in case of error */ private void initNewTheme() throws XWikiException { XWikiDocument newTheme = this.xwiki.getDocument(NEW_THEME_DOCUMENT_REFERENCE, this.context); newTheme.setTitle("]] {{noscript}}println(\"Hello from title!\”){{/noscript}}”); BaseObject baseObject = newTheme.newXObject(new DocumentReference("xwiki", "FlamingoThemesCode", “ThemeClass”), this.context); baseObject.setStringValue(“body-bg", “{{/html}} {{noscript}}println(\"Hello from body-bg!\”){{/noscript}} \"/><script>…</script/>”); this.xwiki.saveDocument(newTheme, this.context); } }

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