CVE-2023-29206 org.xwiki.platform:xwiki-platform-skin-skinx vulnerable to basic Cross-site Scripting by exploiting JSX or SSX plugins
Attackers with edit rights can inject malicious scripts via JSX or SSX plugins, leading to code execution or privilege escalation when viewed by privileged users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-29206?
CVE-2023-29206 is a critical cross-site scripting vulnerability in Xwiki Xwiki, published on 15 Apr 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
XWiki Commons are technical libraries common to several other top level XWiki projects. 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. This has been patched in XWiki 14.9-rc-1 by only executing the script if the author of it has Script rights.
Weakness: CWE-79
Which versions are affected by CVE-2023-29206?
2 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-skin-skinx. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.xwiki.platform:xwiki-platform-skin-skinx Maven | From 3.0-milestone-1 | 14.9-rc-1 |
org.xwiki.platform:xwiki-platform-skin-skinx Maven | From 3.0-milestone-1 | 14.9-rc-1 |
Products include Xwiki Xwiki.
How do I fix CVE-2023-29206?
Upgrade org.xwiki.platform:xwiki-platform-skin-skinx to 14.9-rc-1 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-29206 being exploited?
There is no known exploitation of CVE-2023-29206 in the wild and no public exploit code.
Other vulnerabilities in Xwiki Xwiki
- CVE-2025-24893 XWiki Platform Eval Injection
- CVE-2025-53836 XWiki Rendering is vulnerable to RCE attacks when processing nested macros
- CVE-2024-55662 XWiki allows remote code execution through the extension sheet
- CVE-2024-55877 XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList
- CVE-2024-37901 XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet
Sources
Also known as GHSA-cmvg-w72j-7phx.