GHSA-wcg9-pgqv-xm5v
XWiki Platform allows XSS through XClass name in string properties
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.xwiki.platform:xwiki-platform-oldcore | >= 1.1.2, < 14.10.21 | 14.10.21 |
| Maven | org.xwiki.platform:xwiki-platform-oldcore | >= 15.0-rc-1, < 15.5.5 | 15.5.5 |
| Maven | org.xwiki.platform:xwiki-platform-oldcore | >= 15.6-rc-1, < 15.10.6 | 15.10.6 |
| Maven | org.xwiki.platform:xwiki-platform-oldcore | >= 16.0.0-rc-1, < 16.0.0 | 16.0.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
### 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
1. 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).
1. Edit the class.
1. Add a string property named `"test"`.
1. Edit using the object editor and add an object of the created class
1. 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=edit` where `<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
- https://jira.xwiki.org/browse/XWIKI-21810
- https://github.com/xwiki/xwiki-platform/commit/27eca8423fc1ad177518077a733076821268509c
References
External links from the advisory. They lead to third-party sites.