CVE-2023-32070

CVE-2023-32070 is a critical-severity cross-site scripting (XSS) vulnerability in org.xwiki.rendering:xwiki-rendering-syntax-xhtml (maven), affecting versions < 14.6-rc-1. It is fixed in 14.6-rc-1.

Summary

Workarounds

There are no known workarounds apart from upgrading to a fixed version.

References

For more information

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Impact

HTML rendering didn't check for dangerous attributes/attribute values. This allowed cross-site scripting (XSS) attacks via attributes and link URLs, e.g., supported in XWiki syntax.

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-2023-32070 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 (14.6-rc-1); upgrading removes the vulnerable code path.

Affected versions

org.xwiki.rendering:xwiki-rendering-syntax-xhtml (< 14.6-rc-1) org.xwiki.platform:xwiki-core-rendering-api (<= 3.0-milestone-2) org.xwiki.rendering:xwiki-rendering-syntax-html (< 14.6-rc-1) org.xwiki.rendering:xwiki-rendering-syntax-html5 (< 14.6-rc-1) org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml (< 14.6-rc-1) org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5 (< 14.6-rc-1) org.xwiki.platform:xwiki-platform-annotation-core (< 14.6-rc-1)

Security releases

org.xwiki.rendering:xwiki-rendering-syntax-xhtml → 14.6-rc-1 (maven) org.xwiki.rendering:xwiki-rendering-syntax-html → 14.6-rc-1 (maven) org.xwiki.rendering:xwiki-rendering-syntax-html5 → 14.6-rc-1 (maven) org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml → 14.6-rc-1 (maven) org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5 → 14.6-rc-1 (maven) org.xwiki.platform:xwiki-platform-annotation-core → 14.6-rc-1 (maven)

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.

See it in your environment

Remediation advice

This has been patched in XWiki 14.6 RC1.

Frequently Asked Questions

  1. What is CVE-2023-32070? CVE-2023-32070 is a critical-severity cross-site scripting (XSS) vulnerability in org.xwiki.rendering:xwiki-rendering-syntax-xhtml (maven), affecting versions < 14.6-rc-1. It is fixed in 14.6-rc-1. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
  2. How severe is CVE-2023-32070? CVE-2023-32070 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.
  3. Which packages are affected by CVE-2023-32070?
    • org.xwiki.rendering:xwiki-rendering-syntax-xhtml (maven) (versions < 14.6-rc-1)
    • org.xwiki.platform:xwiki-core-rendering-api (maven) (versions <= 3.0-milestone-2)
    • org.xwiki.rendering:xwiki-rendering-syntax-html (maven) (versions < 14.6-rc-1)
    • org.xwiki.rendering:xwiki-rendering-syntax-html5 (maven) (versions < 14.6-rc-1)
    • org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml (maven) (versions < 14.6-rc-1)
    • org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5 (maven) (versions < 14.6-rc-1)
    • org.xwiki.platform:xwiki-platform-annotation-core (maven) (versions < 14.6-rc-1)
  4. Is there a fix for CVE-2023-32070? Yes. CVE-2023-32070 is fixed in 14.6-rc-1. Upgrade to this version or later.
  5. Is CVE-2023-32070 exploitable, and should I be worried? Whether CVE-2023-32070 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-2023-32070 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-2023-32070?
    • Upgrade org.xwiki.rendering:xwiki-rendering-syntax-xhtml to 14.6-rc-1 or later
    • Upgrade org.xwiki.rendering:xwiki-rendering-syntax-html to 14.6-rc-1 or later
    • Upgrade org.xwiki.rendering:xwiki-rendering-syntax-html5 to 14.6-rc-1 or later
    • Upgrade org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml to 14.6-rc-1 or later
    • Upgrade org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5 to 14.6-rc-1 or later
    • Upgrade org.xwiki.platform:xwiki-platform-annotation-core to 14.6-rc-1 or later

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CVE-2023-32070

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