{"id":"GHSA-j2pq-22jj-4pm5","summary":"XWiki allows remote code execution through the extension sheet","details":"### Impact\nOn instances where `Extension Repository Application` is installed, any user can execute any code requiring `programming` rights on the server.\nIn order to reproduce on an instance, as a normal user without `script` nor `programming` rights, go to your profile and add an object of type `ExtensionCode.ExtensionClass`. Set the description to `{{async}}{{groovy}}println(\"Hello from Description\"){{/groovy}}{{/async}}` and press `Save and View`. If the description displays as `Hello from Description` without any error, then the instance is vulnerable.\n\n### Patches\nThis vulnerability has been fixed in XWiki 15.10.9 and 16.3.0.\n\n### Workarounds\nSince `Extension Repository Application` is not mandatory, it can be safely disabled on instances that do not use it.\nIt is also possible to manually apply [this patch](https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8#diff-9b6f9e853f23d76611967737f8c4072ffceaba4c006ca5a5e65b66d988dc084a) to the page `ExtensionCode.ExtensionSheet`, as well as [this patch](https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8#diff-d571404d94fa27360cfee64f2a11d8c819b397529db275e005606b7356610f82) to the page `ExtensionCode.ExtensionAuthorsDisplayer`.\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-21890\n* https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)","aliases":["CVE-2024-55662"],"modified":"2024-12-12T19:57:25.475442Z","published":"2024-12-12T19:23:04Z","database_specific":{"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2024-12-12T19:23:04Z","nvd_published_at":"2024-12-12T18:15:27Z","cwe_ids":["CWE-863","CWE-94","CWE-96"]},"references":[{"type":"WEB","url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-j2pq-22jj-4pm5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-55662"},{"type":"WEB","url":"https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8"},{"type":"PACKAGE","url":"https://github.com/xwiki/xwiki-platform"},{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-21890"}],"affected":[{"package":{"name":"org.xwiki.platform:xwiki-platform-repository-server-ui","ecosystem":"Maven","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-repository-server-ui"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.3-milestone-1"},{"fixed":"15.10.9"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/12/GHSA-j2pq-22jj-4pm5/GHSA-j2pq-22jj-4pm5.json"}},{"package":{"name":"org.xwiki.platform:xwiki-platform-repository-server-ui","ecosystem":"Maven","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-repository-server-ui"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0-rc-1"},{"fixed":"16.3.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/12/GHSA-j2pq-22jj-4pm5/GHSA-j2pq-22jj-4pm5.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}