CVE-2023-26480

XWiki-Platform vulnerable to stored Cross-site Scripting via the HTML displayer in Live Data

Workarounds

No known workaround.

References

https://jira.xwiki.org/browse/XWIKI-20143

For more information

If you have any questions or comments about this advisory:

• Open an issue in Jira
• Email us at Security ML

A user without script rights can introduce a stored XSS by using the Live Data macro.

For instance:

{{liveData id="movies" properties="title,description"}}
{
  "data": {
    "count": 1,
    "entries": [
      {
        "title": "Meet John Doe",
        "url": "https://www.imdb.com/title/tt0033891/",
        "description": "<img onerror='alert(1)' src='foo' />"
      }
    ]
  },
  "meta": {
    "propertyDescriptors": [
      {
        "id": "title",
        "name": "Title",
        "visible": true,
        "displayer": {"id": "link", "propertyHref": "url"}
      },
      {
        "id": "description",
        "name": "Description",
        "visible": true,
        "displayer": "html"
      }
    ]
  }
}
{{/liveData}}

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

CVE-2023-26480 has a CVSS score of 8.9 (High). The vector is network-reachable, low privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (13.10.10, 14.4.7, 14.9); upgrading removes the vulnerable code path.

Kodem intelligence

Already deployed Kodem?

This has been patched in XWiki 14.9, 14.4.7, and 13.10.10.

1. What is CVE-2023-26480? CVE-2023-26480 is a high-severity cross-site scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-livedata-macro (maven), affecting versions >= 12.10, < 13.10.10. It is fixed in 13.10.10, 14.4.7, 14.9. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
2. How severe is CVE-2023-26480? CVE-2023-26480 has a CVSS score of 8.9 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of org.xwiki.platform:xwiki-platform-livedata-macro are affected by CVE-2023-26480? org.xwiki.platform:xwiki-platform-livedata-macro (maven) versions >= 12.10, < 13.10.10 is affected.
4. Is there a fix for CVE-2023-26480? Yes. CVE-2023-26480 is fixed in 13.10.10, 14.4.7, 14.9. Upgrade to this version or later.
5. Is CVE-2023-26480 exploitable, and should I be worried? Whether CVE-2023-26480 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2023-26480 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2023-26480?
   • Upgrade org.xwiki.platform:xwiki-platform-livedata-macro to 13.10.10 or later
   • Upgrade org.xwiki.platform:xwiki-platform-livedata-macro to 14.4.7 or later
   • Upgrade org.xwiki.platform:xwiki-platform-livedata-macro to 14.9 or later

Other vulnerabilities in org.xwiki.platform:xwiki-platform-livedata-macro