{"id":"CVE-2024-31996","aliases":["GHSA-hf43-47q4-fhq5"],"url":"https://o3.security/vulnerability/CVE-2024-31996","summary":"XWiki Commons missing escaping of `{` in Velocity escapetool allows remote code execution","details":"### Impact\nThe HTML escaping of escaping tool that is used in XWiki doesn't escape `{`, which, when used in certain places, allows XWiki syntax injection and thereby remote code execution.\n\nTo reproduce in an XWiki installation, open `<xwiki-host>/xwiki/bin/view/Panels/PanelLayoutUpdate?place=%7B%7B%2Fhtml%7D%7D%7B%7Basync%20async%3Dfalse%7D%7D%7B%7Bvelocity%7D%7D%23evaluate(%24request.eval)%7B%7B%2Fvelocity%7D%7D%7B%7B%2Fasync%7D%7D&eval=Hello%20from%20URL%20Parameter!%20I%20got%20programming%3A%20%24services.security.authorization.hasAccess(%27programming%27)` where `<xwiki-host>` is the URL of your XWiki installation. If this displays `You are not admin on this place Hello from URL Parameter! I got programming: true`, the installation is vulnerable.\n\n### Patches\nThe vulnerability has been fixed on XWiki 14.10.19, 15.5.5, and 15.9 RC1.\n\n### Workarounds\nApart from upgrading, there is no generic workaround. However, replacing `$escapetool.html` by `$escapetool.xml` in XWiki documents fixes the vulnerability. In a standard XWiki installation, we're only aware of the document `Panels.PanelLayoutUpdate` that exposes this vulnerability, patching this document is thus a workaround. Any extension could expose this vulnerability and might thus require patching, too.\n\n### References\n- https://github.com/xwiki/xwiki-commons/commit/b94142e2a66ec32e89eacab67c3da8d91f5ef93a\n- https://jira.xwiki.org/browse/XCOMMONS-2828\n- https://jira.xwiki.org/browse/XWIKI-21438","published":"2024-04-10T20:46:19.929Z","modified":"2026-10-28T10:43:48.793227596Z","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.commons:xwiki-commons-velocity","fixedVersion":"14.10.19"},{"ecosystem":"Maven","name":"org.xwiki.commons:xwiki-commons-velocity","fixedVersion":"15.5.4"},{"ecosystem":"Maven","name":"org.xwiki.commons:xwiki-commons-velocity","fixedVersion":"15.9-rc-1"}],"fix":{"url":"https://github.com/xwiki/xwiki-commons/commit/b0805160ec7b01ee12417e79cb384e60ae4817aa","label":"xwiki/xwiki-commons@b080516"},"references":[{"type":"WEB","url":"https://jira.xwiki.org/browse/XCOMMONS-2828"},{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-21438"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/31xxx/CVE-2024-31996.json"},{"type":"ADVISORY","url":"https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-hf43-47q4-fhq5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-31996"},{"type":"FIX","url":"https://github.com/xwiki/xwiki-commons/commit/b0805160ec7b01ee12417e79cb384e60ae4817aa"},{"type":"FIX","url":"https://github.com/xwiki/xwiki-commons/commit/b94142e2a66ec32e89eacab67c3da8d91f5ef93a"},{"type":"FIX","url":"https://github.com/xwiki/xwiki-commons/commit/ed7ff515a2436a1c6dcbd0c6ca0c41e434d58915"},{"type":"PACKAGE","url":"https://github.com/xwiki/xwiki-commons"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T10:43:48.793227596Z"}}