Summary
XWiki App Within Minutes app grants space admin rights that allows cross-site scripting
Workarounds
The patch can be applied by patching the affected wiki documents, the most important one being AppWithinMinutes.LiveTableEditSheet. Further, the attack can be prevented by denying view access to AppWithinMinutes.LiveTableEditSheet. This only impacts creation and editing of App Within Minutes apps.
References
- https://jira.xwiki.org/browse/XWIKI-20190
- https://github.com/xwiki/xwiki-platform/commit/e73b890623efa604adc484ad82f37e31596fe1a6
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at Security Mailing List
Impact
Any user who can create a space can become admin of that space through App Within Minutes. The admin right implies the script right and thus allows JavaScript injection. The vulnerability can be exploited by creating an app in App Within Minutes. If the button should be disabled because the user doesn't have global edit right, the app can also be created by directly opening /xwiki/bin/view/AppWithinMinutes/CreateApplication?wizard=true on the 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-2023-29515 has a CVSS score of 5.4 (Medium). 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 (4.2-milestone-1, 13.10.11, 14.4.8, 14.10.1); 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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See it in your environmentNew to Kodem? Get a demo →Remediation advice
This has been patched in XWiki 13.10.11, 14.4.8, 14.10.1 and 15.0 RC1 by not granting the space admin right if the user doesn't have script right on the space where the app is created. Error message are displayed to warn the user that the app will be broken in this case. Users who became space admin through this vulnerability won't loose the space admin right due to the fix, so it is advised to check if all users who created AWM apps should keep their space admin rights.
Frequently Asked Questions
- What is CVE-2023-29515? CVE-2023-29515 is a medium-severity cross-site scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-appwithinminutes (maven), affecting versions >= 4.0-milestone-2, < 4.2-milestone-1. It is fixed in 4.2-milestone-1, 13.10.11, 14.4.8, 14.10.1. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- How severe is CVE-2023-29515? CVE-2023-29515 has a CVSS score of 5.4 (Medium). 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-2023-29515?
org.xwiki.platform:xwiki-platform-appwithinminutes(maven) (versions >= 4.0-milestone-2, < 4.2-milestone-1)org.xwiki.platform:xwiki-platform-appwithinminutes-ui(maven) (versions >= 4.2-milestone-1, < 13.10.11)
- Is there a fix for CVE-2023-29515? Yes. CVE-2023-29515 is fixed in 4.2-milestone-1, 13.10.11, 14.4.8, 14.10.1. Upgrade to this version or later.
- Is CVE-2023-29515 exploitable, and should I be worried? Whether CVE-2023-29515 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-2023-29515 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-2023-29515?
- Upgrade
org.xwiki.platform:xwiki-platform-appwithinminutesto 4.2-milestone-1 or later - Upgrade
org.xwiki.platform:xwiki-platform-appwithinminutes-uito 13.10.11 or later - Upgrade
org.xwiki.platform:xwiki-platform-appwithinminutes-uito 14.4.8 or later - Upgrade
org.xwiki.platform:xwiki-platform-appwithinminutes-uito 14.10.1 or later
- Upgrade