CVE-2023-29206
org.xwiki.platform:xwiki-platform-skin-skinx vulnerable to basic Cross-site Scripting by exploiting JSX or SSX plugins
Description
### Impact There was no check in the author of a JavaScript xobject or StyleSheet xobject added in a XWiki document, so until now it was possible for a user having only Edit Right to create such object and to craft a script allowing to perform some operations when executing by a user with appropriate rights. ### Patches This has been patched in XWiki 14.9-rc-1 by only executing the script if the author of it has Script right. ### Workarounds The only known workaround consists in applying [the following patch](https://github.com/xwiki/xwiki-platform/commit/fe65bc35d5672dd2505b7ac4ec42aec57d500fbb) and rebuilding and redeploying `xwiki-platform-skin-skinx`. ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira](http://jira.xwiki.org) * Email us at [Security ML](mailto:security@xwiki.org)
How to fix CVE-2023-29206
To remediate CVE-2023-29206, upgrade the affected package to a fixed version below.
- —upgrade to 14.9-rc-1 or later
Is CVE-2023-29206 being exploited?
Low — EPSS is 4.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.0-milestone-1, < 14.9-rc-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |