XWiki Platform vulnerable to cross-site scripting via xcontinue parameter in previewactions template
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 previewactions template to perform a XSS, e.g. by using URL such as:
<hostname>/xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=previewactions.vm&xcontinue=javascript:alert(document.domain)
This vulnerability exists since XWiki 6.1-rc-1.
Patches
The vulnerability has been patched in XWiki 14.10.5 and 15.1-rc-1.
Workarounds
It's possible to workaround the vulnerability by editing the template previewactions.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 vulnerability: https://jira.xwiki.org/browse/XWIKI-20342
- Introduction of the macro used for fixing this type of vulnerability: https://jira.xwiki.org/browse/XWIKI-20583
- Commit containing the actual fix in the template: https://github.com/xwiki/xwiki-platform/commit/9f01166b1a8ee9639666099eb5040302df067e4d
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
Attribution
This vulnerability has been reported by René de Sain @renniepak.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.xwiki.platform:xwiki-platform-flamingo-skin-resources | >= 6.1-rc-1, < 14.10.5, >= 15.0-rc-1, < 15.1-rc-1 | 14.10.5, 15.1-rc-1 |
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-q9hg-9qj2-mxf9
- https://nvd.nist.gov/vuln/detail/CVE-2023-35162
- https://github.com/xwiki/xwiki-platform/commit/9f01166b1a8ee9639666099eb5040302df067e4d
- https://github.com/xwiki/xwiki-platform
- https://jira.xwiki.org/browse/XWIKI-20342
- https://jira.xwiki.org/browse/XWIKI-20583
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-79- Platform
- Java / Kotlin (Maven)
- Package
org.xwiki.platform:xwiki-platform-flamingo-skin-resources- Disclosed
- 20.06.2023
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-q9hg-9qj2-mxf9 - CC BY 4.0
Vulnerability history: org.xwiki.platform:xwiki-platform-flamingo-skin-resources
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 04.2023 12.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 4
- High 1
- Medium 1
Disclosures per year
- 2023: 5
- 2024: 0
- 2025: 1
- 2026: 0
-
XWiki Platform vulnerable to cross-site scripting via xcontinue parameter in previewactions template this entry
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