CVE-2023-45136: XWiki Platform web templates vulnerable to reflected XSS in the create document form if name validation is enabled
Impact When document names are validated according to a name strategy (disabled by default), XWiki is vulnerable to a reflected XSS attack in the page creation form. To reproduce, make sure that "Validate names before saving" is enabled in the administration under "Editing" -> "Name strategies" and then open <xwiki-host>/xwiki/bin/create/Main/%3Cscript%3Ealert%28%27Test%20Test%20Test%20Test%20Test%27%29%3C%2Fscript%3E where <xwiki-host> is the URL of your XWiki installation. This displays an alert if the installation is vulnerable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation.
Patches This has been patched in XWiki 14.10.12 and 15.5-RC-1 by adding appropriate escaping.
Workarounds The vulnerable template file createinline.vm is part of XWiki's WAR and can be patched by manually applying the changes from the fix.
Other sources
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When document names are validated according to a name strategy (disabled by default), XWiki starting in version 12.0-rc-1 and prior to versions 12.10.12 and 15.5-rc-1 is vulnerable to a reflected cross-site scripting attack in the page creation form. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. This has been patched in XWiki 14.10.12 and 15.5-rc-1 by adding appropriate escaping. The vulnerable template file createinline.vm is part of XWiki's WAR and can be patched by manually applying the changes from the fix.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2023-45136?
The severity of CVE-2023-45136 is critical with a severity value of 9.7.
How does CVE-2023-45136 impact XWiki?
CVE-2023-45136 allows for a reflected XSS attack in the page creation form of XWiki when document names are validated.
How can I reproduce the XSS attack in XWiki?
To reproduce the XSS attack, enable "Validate names before saving" in the administration under "Editing" -> "Name strategies".
What is the affected software version of CVE-2023-45136?
CVE-2023-45136 affects the org.xwiki.platform:xwiki-platform-web-templates package with versions between 15.0-rc-1 and 15.5-rc-1 (exclusive) and versions between 12.0-rc-1 and 14.10.12 (exclusive).
How can I fix CVE-2023-45136?
To fix CVE-2023-45136, update the org.xwiki.platform:xwiki-platform-web-templates package to version 15.5-rc-1 or apply the exact remedy version 14.10.12.