Summary
XWiki vulnerable to stored cross-site scripting via any wiki document and the displaycontent/rendercontent template
Workarounds
The patch can be manually applied to the rendercontent.vm template in an existing installation to patch this vulnerability without upgrading.
References
Impact
Any user who can edit a document in a wiki like the user profile can create a stored XSS attack by putting plain HTML code into that document and then tricking another user to visit that document with the displaycontent or rendercontent template and plain output syntax. For example, edit any document with the wiki editor and set the content to <script>alert(1)</script> , save and then append the parameters ?viewer=displaycontent&sheet=&outputSyntax=plain. If this displays an alert, the installation is vulnerable. If a user with programming rights is tricked into visiting such a URL, arbitrary actions be performed with this user's rights, impacting the confidentiality, integrity, and availability of the whole XWiki installation.
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-2023-34464 has a CVSS score of 9.0 (Critical). 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 (14.4.8, 14.10.5, 15.1-rc-1); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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This has been patched in XWiki 14.4.8, 14.10.5 and 15.1RC1 by setting the content type of the response to plain text when the output syntax is not an HTML syntax.
Frequently Asked Questions
- What is CVE-2023-34464? CVE-2023-34464 is a critical-severity cross-site scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-web (maven), affecting versions >= 2.2.1, < 14.4.8. It is fixed in 14.4.8, 14.10.5, 15.1-rc-1. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- How severe is CVE-2023-34464? CVE-2023-34464 has a CVSS score of 9.0 (Critical). 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.
- Which packages are affected by CVE-2023-34464?
org.xwiki.platform:xwiki-platform-web(maven) (versions >= 2.2.1, < 14.4.8)org.xwiki.platform:xwiki-platform-web-templates(maven) (versions < 14.4.8)
- Is there a fix for CVE-2023-34464? Yes. CVE-2023-34464 is fixed in 14.4.8, 14.10.5, 15.1-rc-1. Upgrade to this version or later.
- Is CVE-2023-34464 exploitable, and should I be worried? Whether CVE-2023-34464 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
- What actually determines whether CVE-2023-34464 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.
- How do I fix CVE-2023-34464?
- Upgrade
org.xwiki.platform:xwiki-platform-webto 14.4.8 or later - Upgrade
org.xwiki.platform:xwiki-platform-web-templatesto 14.4.8 or later - Upgrade
org.xwiki.platform:xwiki-platform-web-templatesto 14.10.5 or later - Upgrade
org.xwiki.platform:xwiki-platform-web-templatesto 15.1-rc-1 or later
- Upgrade