CVE-2023-35156: XWiki Platform vulnerable to reflected cross-site scripting via xredirect parameter in delete template
First published: Thu Jun 22 2023(Updated: )
### Impact Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS). It's possible to exploit the delete template to perform a XSS, e.g. by using URL such as: > xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=delete.vm&xredirect=javascript:alert(document.domain) This vulnerability exists since XWiki 6.0-rc-1. ### Patches The vulnerability has been patched in XWiki 14.10.6 and 15.1. Note that a partial patch has been provided in 14.10.5 but wasn't enough to entirely fix the vulnerability. ### Workarounds It's possible to workaround the vulnerability by editing the template delete.vm to perform checks on it, but note that the appropriate fix involves new APIs that have been recently introduced in XWiki. See the referenced jira tickets. ### References * Jira ticket about the original vulnerability: https://jira.xwiki.org/browse/XWIKI-20341 * Commit containing the first fix in the template: https://github.com/xwiki/xwiki-platform/commit/e80d22d193df364b07bab7925572720f91a8984a * Jira ticket about the second part of the vulnerability found after 14.10.5: https://jira.xwiki.org/browse/XWIKI-20672 * Commits containing the second fix in the template: * https://github.com/xwiki/xwiki-platform/commit/13875a6437d4525ac4aeea25918f2d2dffac9ee1 * https://github.com/xwiki/xwiki-platform/commit/24ec12890ac7fa6daec8d0b3435cfcba11362fd5 * Introduction of the macro used for fixing all those vulnerabilities: https://jira.xwiki.org/browse/XWIKI-20583 ### 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) ### Attribution This vulnerability has been reported by René de Sain @renniepak.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xwiki Xwiki | >=6.0.1<14.10.6 | |
| Xwiki Xwiki | =6.0-milestone1 | |
| Xwiki Xwiki | =6.0-milestone2 | |
| Xwiki Xwiki | =15.0 | |
| maven/org.xwiki.platform:xwiki-platform-flamingo-skin-resources | >=15.0-rc-0<15.1 | 15.1 |
| maven/org.xwiki.platform:xwiki-platform-flamingo-skin-resources | >=6.0-rc-1<14.10.6 | 14.10.6 |
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Reference Links
- https://github.com/xwiki/xwiki-platform/commit/13875a6437d4525ac4aeea25918f2d2dffac9ee1
- https://github.com/xwiki/xwiki-platform/commit/24ec12890ac7fa6daec8d0b3435cfcba11362fd5
- https://github.com/xwiki/xwiki-platform/commit/e80d22d193df364b07bab7925572720f91a8984a
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-834c-x29c-f42c
- https://jira.xwiki.org/browse/XWIKI-20341
- https://jira.xwiki.org/browse/XWIKI-20583
- https://jira.xwiki.org/browse/XWIKI-20672
- https://nvd.nist.gov/vuln/detail/CVE-2023-35156
- https://github.com/advisories/GHSA-834c-x29c-f42c (Advisory)
Frequently Asked Questions
What is CVE-2023-35156?
CVE-2023-35156 is a vulnerability in XWiki Platform that allows users to inject JavaScript in a page, leading to a cross-site scripting (XSS) attack.
What is the severity of CVE-2023-35156?
CVE-2023-35156 has a severity level of critical.
How can CVE-2023-35156 be exploited?
CVE-2023-35156 can be exploited by forging a URL with a payload that injects JavaScript into the page.
Which versions of XWiki Platform are affected by CVE-2023-35156?
XWiki Platform versions 6.0.1 to 14.10.6 and versions 6.0-milestone1, 6.0-milestone2, and 15.0 are affected by CVE-2023-35156.
How can CVE-2023-35156 be fixed?
To fix CVE-2023-35156, users should update to a version of XWiki Platform that includes the following commits: [commit1](https://github.com/xwiki/xwiki-platform/commit/13875a6437d4525ac4aeea25918f2d2dffac9ee1), [commit2](https://github.com/xwiki/xwiki-platform/commit/24ec12890ac7fa6daec8d0b3435cfcba11362fd5), and [commit3](https://github.com/xwiki/xwiki-platform/commit/e80d22d193df364b07bab7925572720f91a8984a).
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