{"cve":"CVE-2023-37908","nvd":{"published":"2023-10-25T18:17:28.333","modified":"2026-06-17T06:08:52.760","status":"Modified","description":"XWiki Rendering is a generic Rendering system that converts textual input in a given syntax into another syntax. The cleaning of attributes during XHTML rendering, introduced in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid attribute names. This can be exploited, e.g., via the link syntax in any content that supports XWiki syntax like comments in XWiki. When a user moves the mouse over a malicious link, the malicious JavaScript code is executed in the context of the user session. When this user is a privileged user who has programming rights, this allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. While this attribute was correctly recognized as not allowed, the attribute was still printed with a prefix `data-xwiki-translated-attribute-` without further cleaning or validation. This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by removing characters not allowed in data attributes and then validating the cleaned attribute again. There are no known workarounds apart from upgrading to a version including the fix.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","score":9.6},"cwes":["CWE-79","CWE-83"],"references":["https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f","https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739","https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp","https://jira.xwiki.org/browse/XRENDERING-697","https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f"],"products":["xwiki:xwiki-rendering"],"source":"nvd","synced_at":"2026-10-19T21:40:11.519948003+00:00"},"epss":{"cve":"CVE-2023-37908","score":0.01112,"percentile":0.65973,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-663w-2xp3-5739","url":"https://osv.dev/vulnerability/GHSA-663w-2xp3-5739","summary":"org.xwiki.rendering:xwiki-rendering-xml Improper Neutralization of Invalid Characters in Identifiers in Web Pages vulnerability","modified":"2026-02-04T02:27:12.274914Z","packages":[{"ecosystem":"Maven","name":"org.xwiki.rendering:xwiki-rendering-xml","purl":"pkg:maven/org.xwiki.rendering/xwiki-rendering-xml","ranges":[">=14.6-rc-1 <14.10.4"],"fixed":["14.10.4"]}]}],"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."]}