{
    "id": "CVE-2023-26477",
    "published": "2023-03-02 18:15:10",
    "last_modified": "2026-06-17 05:43:25",
    "cvss_score": "10.0",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-95",
    "description": "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",
    "epss_score": "0.74757",
    "epss_percentile": "0.99491",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-09-30 18:17:35",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 74.8% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "xwiki",
            "product": "xwiki"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284",
        "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpg",
        "https://jira.xwiki.org/browse/XWIKI-19757",
        "https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284",
        "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpg",
        "https://jira.xwiki.org/browse/XWIKI-19757"
    ]
}