GHSA-36fm-j33w-c25f Privilege escalation (PR)/RCE from account through class sheet

• Maven org.xwiki.platform:xwiki-platform-test-ui: >= 3.3-milestone-3, < 14.10.4 → fixed in 14.10.4

Impact It's possible for a user to execute anything with the right of the author of the XWiki.ClassSheet document. Steps to Reproduce: 1. Edit your user profile with the object editor and add an object of type `DocumentSheetBinding` with value `Default Class Sheet` 1. Edit your user profile with the wiki editor and add the syntax `{{async}}{{groovy}}println("Hello " + "from groovy!"){{/groovy}}{{/async}}` 1. Click "Save & View" Expected result: An error is displayed as the user doesn't have the right to execute the Groovy macro. Actual result: The text "Hello from groovy!" is displayed at the top of the document. Patches This has been patched in XWiki 15.0-rc-1 and 14.10.4. Workarounds There are no known workarounds for it. References https://jira.xwiki.org/browse/XWIKI-20566 https://github.com/xwiki/xwiki-platform/commit/de72760d4a3e1e9be64a10660a0c19e9534e2ec4 For more information If you have any questions or comments about this advisory: • Open an issue in Jira XWiki.org • Email us at Security Mailing List