CVE-2024-41947: XWiki Platform XSS through conflict resolution
First published: Wed Jul 31 2024(Updated: )
### Impact By creating a conflict when another user with more rights is currently editing a page, it is possible to execute JavaScript snippets on the side of the other user, which compromises the confidentiality, integrity and availability of the whole XWiki installation. To reproduce on a XWiki instance, a user with admin rights needs to edit a document without saving right away. Then, as another user without any other right than edit on the specific document, change the whole content to `<script>alert('XSS')</script>`. When the admin user then saves the document, a conflict popup appears. If they select "Fix each conflict individually" and see an alert displaying "XSS", then the instance is vulnerable. ### Patches This has been patched in XWiki 15.10.8 and 16.3.0RC1. ### Workarounds We're not aware of any workaround except upgrading. ### References * https://jira.xwiki.org/browse/XWIKI-21626 * https://github.com/xwiki/xwiki-platform/commit/821d43ec45e67d45a6735a0717b9b77fffc1cd9f ### 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 security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.xwiki.platform:xwiki-platform-web-templates | >=16.0.0-rc-1<16.3.0-rc-1 | 16.3.0-rc-1 |
| maven/org.xwiki.platform:xwiki-platform-web-templates | >=11.8-rc-1<15.10.8 | 15.10.8 |
| Xwiki | >=11.8<15.10.8 | |
| Xwiki | >=16.0<16.3.0 |
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Reference Links
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-692v-783f-mg8x
- https://github.com/xwiki/xwiki-platform/commit/821d43ec45e67d45a6735a0717b9b77fffc1cd9f
- https://github.com/xwiki/xwiki-platform/commit/e00e159d3737397eebd1f6ff925c1f5cb7cdec34
- https://jira.xwiki.org/browse/XWIKI-21626
- https://nvd.nist.gov/vuln/detail/CVE-2024-41947
- https://github.com/advisories/GHSA-692v-783f-mg8x (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-41947?
CVE-2024-41947 is considered a critical vulnerability due to its potential to execute unauthorized JavaScript and compromise XWiki installations.
How do I fix CVE-2024-41947?
To fix CVE-2024-41947, upgrade to version 16.3.0-rc-1 or 15.10.8 of the affected package org.xwiki.platform:xwiki-platform-web-templates.
What systems are affected by CVE-2024-41947?
CVE-2024-41947 affects all XWiki installations from version 11.8 to 16.3.0 and specifically the org.xwiki.platform:xwiki-platform-web-templates package.
What is the impact of CVE-2024-41947?
The impact of CVE-2024-41947 includes potential execution of JavaScript on another user's session, compromising the confidentiality, integrity, and availability of the XWiki.
How can I determine if my XWiki installation is vulnerable to CVE-2024-41947?
You can determine if your XWiki installation is vulnerable to CVE-2024-41947 by checking if you are running versions of XWiki between 11.8 and 16.3.0.
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