{"cve":"CVE-2021-29459","nvd":{"published":"2021-04-20T19:15:09.670","modified":"2026-06-17T03:47:41.050","status":"Modified","description":"XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It is possible to persistently inject scripts in XWiki versions prior to 12.6.3 and 12.8. Unregistred users can fill simple text fields. Registered users can fill in their personal information and (if they have edit rights) fill the values of static lists using App Within Minutes. There is no easy workaround except upgrading XWiki. The vulnerability has been patched on XWiki 12.8 and 12.6.3.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5c66-v29h-xjh8","https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5c66-v29h-xjh8"],"products":["xwiki:xwiki"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-29459","score":0.01123,"percentile":0.66259,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-5c66-v29h-xjh8","url":"https://osv.dev/vulnerability/GHSA-5c66-v29h-xjh8","summary":"XSS Cross Site Scripting","modified":"2026-07-08T06:29:41.048635642Z","packages":[{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-oldcore","ranges":["<12.6.3"],"fixed":["12.6.3"]},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-oldcore","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-oldcore","ranges":[">=12.6.4 <12.8"],"fixed":["12.8"]},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-web","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-web","ranges":["<12.6.3"],"fixed":["12.6.3"]},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-web","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-web","ranges":[">=12.6.4 <12.8"],"fixed":["12.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}