CVE-2023-29203

Unauthenticated user can have information about hidden users on subwikis through uorgsuggest.vm

Workarounds

It's possible to workaround this vulnerability by patching directly uorgsuggest.vm to apply the same changes as in https://github.com/xwiki/xwiki-platform/pull/1883.

References

• JIRA ticket: https://jira.xwiki.org/browse/XWIKI-20007
  • this vulnerability is actually a remaining of https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-97jg-43c9-q6pf which wasn't entirely fixed back then

For more information

If you have any questions or comments about this advisory:

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

It's possible to list some users who are normally not viewable from subwiki by requesting users on a subwiki which allows only global users with uorgsuggest.vm. This issue only concerns hidden users from main wiki.
Note that the disclosed information are the username and the first and last name of users, no other information is leaked.

CVE-2023-29203 has a CVSS score of 3.7 (Low). The vector is network-reachable, no privileges required, and no user interaction. 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 (13.10.8, 14.4.3, 14.7-rc-1); upgrading removes the vulnerable code path.

Kodem intelligence

Already deployed Kodem?

The problem has been patched on XWiki 13.10.8, 14.4.3 and 14.7RC1.

1. What is CVE-2023-29203? CVE-2023-29203 is a low-severity security vulnerability in org.xwiki.platform:xwiki-platform-web-templates (maven), affecting versions >= 13.9-rc-1, < 13.10.8. It is fixed in 13.10.8, 14.4.3, 14.7-rc-1.
2. How severe is CVE-2023-29203? CVE-2023-29203 has a CVSS score of 3.7 (Low). 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-web-templates are affected by CVE-2023-29203? org.xwiki.platform:xwiki-platform-web-templates (maven) versions >= 13.9-rc-1, < 13.10.8 is affected.
4. Is there a fix for CVE-2023-29203? Yes. CVE-2023-29203 is fixed in 13.10.8, 14.4.3, 14.7-rc-1. Upgrade to this version or later.
5. Is CVE-2023-29203 exploitable, and should I be worried? Whether CVE-2023-29203 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-2023-29203 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-2023-29203?
   • Upgrade org.xwiki.platform:xwiki-platform-web-templates to 13.10.8 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web-templates to 14.4.3 or later
   • Upgrade org.xwiki.platform:xwiki-platform-web-templates to 14.7-rc-1 or later

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