{"id":"GHSA-692v-783f-mg8x","summary":"XWiki Platform vulnerable to Cross-Site Scripting (XSS) through conflict resolution","details":"### Impact\n\nBy creating a conflict when another user with more rights is currently editing a page, it is possible to execute JavaScript snippets on the side of the other user, which compromises the confidentiality, integrity and availability of the whole XWiki installation.\n\nTo reproduce on a XWiki instance, a user with admin rights needs to edit a document without saving right away.\nThen, as another user without any other right than edit on the specific document, change the whole content to `\u003cscript\u003ealert('XSS')\u003c/script\u003e`.\nWhen the admin user then saves the document, a conflict popup appears. If they select \"Fix each conflict individually\" and see an alert displaying \"XSS\", then the instance is vulnerable.\n\n### Patches\n\nThis has been patched in XWiki 15.10.8 and 16.3.0RC1.\n\n### Workarounds\n\nWe're not aware of any workaround except upgrading.\n\n### References\n\n* https://jira.xwiki.org/browse/XWIKI-21626\n* https://github.com/xwiki/xwiki-platform/commit/821d43ec45e67d45a6735a0717b9b77fffc1cd9f\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-2024-41947"],"modified":"2024-07-31T20:20:42Z","published":"2024-07-31T16:54:36Z","database_specific":{"cwe_ids":["CWE-79","CWE-80"],"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2024-07-31T16:54:36Z","nvd_published_at":"2024-07-31T16:15:04Z"},"references":[{"type":"WEB","url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-692v-783f-mg8x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-41947"},{"type":"WEB","url":"https://github.com/xwiki/xwiki-platform/commit/821d43ec45e67d45a6735a0717b9b77fffc1cd9f"},{"type":"WEB","url":"https://github.com/xwiki/xwiki-platform/commit/e00e159d3737397eebd1f6ff925c1f5cb7cdec34"},{"type":"PACKAGE","url":"https://github.com/xwiki/xwiki-platform"},{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-21626"}],"affected":[{"package":{"name":"org.xwiki.platform:xwiki-platform-web-templates","ecosystem":"Maven","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-web-templates"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.8-rc-1"},{"fixed":"15.10.8"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/07/GHSA-692v-783f-mg8x/GHSA-692v-783f-mg8x.json"}},{"package":{"name":"org.xwiki.platform:xwiki-platform-web-templates","ecosystem":"Maven","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-web-templates"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0-rc-1"},{"fixed":"16.3.0-rc-1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/07/GHSA-692v-783f-mg8x/GHSA-692v-783f-mg8x.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"}]}