XWiki Platform allows XSS through XClass name in string properties
Impact
Is it possible for a user without Script or Programming rights to craft a URL pointing to a page with arbitrary JavaScript. This requires social engineer to trick a user to follow the URL.
Reproduction steps
- As a user without script or programming right, create a (non-terminal) document named
" + alert(1) + "(the quotes need to be part of the name). - Edit the class.
- Add a string property named
"test". - Edit using the object editor and add an object of the created class
- Get an admin to open
<xwiki-server>/xwiki/bin/view/%22%20%2B%20alert(1)%20%2B%20%22/?viewer=display&type=object&property=%22%20%2B%20alert(1)%20%2B%20%22.WebHome.test&mode=editwhere<xwiki-server>is the URL of your XWiki installation.
Patches
This has been patched in XWiki 14.10.21, 15.5.5, 15.10.6 and 16.0.0.
Workarounds
We're not aware of any workaround except upgrading.
References
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-oldcore | >= 1.1.2, < 14.10.21, >= 15.0-rc-1, < 15.5.5, >= 15.6-rc-1, < 15.10.6, >= 16.0.0-rc-1, < 16.0.0 | 14.10.21, 15.5.5, 15.10.6, 16.0.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-79, CWE-96- Platform
- Java / Kotlin (Maven)
- Package
org.xwiki.platform:xwiki-platform-oldcore- Disclosed
- 19.08.2024
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wcg9-pgqv-xm5v - CC BY 4.0
Vulnerability history: org.xwiki.platform:xwiki-platform-oldcore
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
- 46
- First → latest
- 09.2020 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 12
- High 17
- Medium 15
- Low 2
Disclosures per year
- 2020: 2
- 2021: 1
- 2022: 12
- 2023: 15
- 2024: 7
- 2025: 6
- 2026: 3
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XWiki Platform allows XSS through XClass name in string properties this entry
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