{"id":"CVE-2023-26477","aliases":["GHSA-x2qm-r4wx-8gpg"],"url":"https://o3.security/vulnerability/CVE-2023-26477","summary":"org.xwiki.platform:xwiki-platform-flamingo-theme-ui Eval Injection vulnerability","details":"XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.\n","published":"2023-03-02T17:52:40.359Z","modified":"2026-08-12T03:51:33.722706736Z","cvss":{"score":10,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-flamingo-theme-ui","fixedVersion":"13.10.10"},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-flamingo-theme-ui","fixedVersion":"14.4.6"},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-flamingo-theme-ui","fixedVersion":"14.9-rc-1"}],"fix":{"url":"https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284","label":"xwiki/xwiki-platform@ea2e615"},"references":[{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-19757"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26477.json"},{"type":"ADVISORY","url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26477"},{"type":"FIX","url":"https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:33.722706736Z"}}