CVE-2023-29515: Cross-site scripting (XSS) in xwiki-platform
First published: Tue Apr 18 2023(Updated: )
### 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. ### Patches 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. ### 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](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.xwiki.platform:xwiki-platform-appwithinminutes-ui | >=14.5<14.10.1 | 14.10.1 |
| maven/org.xwiki.platform:xwiki-platform-appwithinminutes-ui | >=14.0-rc-1<14.4.8 | 14.4.8 |
| maven/org.xwiki.platform:xwiki-platform-appwithinminutes-ui | >=4.2-milestone-1<13.10.11 | 13.10.11 |
| maven/org.xwiki.platform:xwiki-platform-appwithinminutes | >=4.0-milestone-2<4.2-milestone-1 | 4.2-milestone-1 |
| Xwiki | <13.10.11 | |
| Xwiki | >=14.0<14.4.8 | |
| Xwiki | >=14.5<14.10.1 |
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Reference Links
- https://github.com/xwiki/xwiki-platform/commit/e73b890623efa604adc484ad82f37e31596fe1a6
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-44h9-xxvx-pg6x
- https://jira.xwiki.org/browse/XWIKI-20190
- https://nvd.nist.gov/vuln/detail/CVE-2023-29515
- https://github.com/advisories/GHSA-44h9-xxvx-pg6x (Advisory)
Frequently Asked Questions
What is CVE-2023-29515?
CVE-2023-29515 is a vulnerability in XWiki Platform which allows any user who can create a space to become the admin of that space, leading to potential JavaScript injection.
How does CVE-2023-29515 affect XWiki Platform?
CVE-2023-29515 affects XWiki Platform versions up to 13.10.11 and versions between 14.0 and 14.4.8, allowing users to gain admin privileges and potentially inject JavaScript.
What is the severity of CVE-2023-29515?
CVE-2023-29515 has a severity rating of 5.4 (high).
How can I fix CVE-2023-29515?
To fix CVE-2023-29515, it is recommended to upgrade XWiki Platform to version 14.10.1 or later.
Is there any additional information about CVE-2023-29515?
Yes, you can find additional information about CVE-2023-29515 in the references provided: [GitHub Commit](https://github.com/xwiki/xwiki-platform/commit/e73b890623efa604adc484ad82f37e31596fe1a6), [GitHub Security Advisory](https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-44h9-xxvx-pg6x), [XWiki Jira Issue](https://jira.xwiki.org/browse/XWIKI-20190).
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