9.9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
0.004 Low
EPSS
Percentile
73.9%
Any user with view rights on commonly accessible documents including the menu macro can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation due to improper escaping of the macro content and parameters of the menu macro.
The issue can be demonstrated by opening <server>/xwiki/bin/view/Main?sheet=CKEditor.HTMLConverter&language=en&sourceSyntax=xwiki%2F2.1&stripHTMLEnvelope=true&fromHTML=false&toHTML=true&text=%7B%7Bmenu%7D%7D%7B%7Bcache+id%3D%22menuMacro%22%7D%7D%7B%7Bgroovy%7D%7Dprintln%28%22Hello+from+Groovy%21%22%29%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fcache%7D%7D%7B%7B%2Fmenu%7D%7D
where <server>
is the URL of the XWiki installation. If this displays “Hello from Groovy!”, the installation is vulnerable.
The problem has been patched in XWiki 14.6RC1, 13.10.8 and 14.4.3.
The patch for the document Menu.MenuMacro
can be manually applied or a XAR archive of a patched version can be imported. The menu macro was basically unchanged since XWiki 11.6 so on XWiki 11.6 or later the patch for version of 13.10.8 can most likely be applied, on XWiki version 14.0 and later the versions in XWiki 14.6 and 14.4.3 should be appropriate.
If you have any questions or comments about this advisory:
CPE | Name | Operator | Version |
---|---|---|---|
org.xwiki.platform:xwiki-platform-menu-ui | lt | 14.4.3 | |
org.xwiki.platform:xwiki-platform-menu-ui | lt | 13.10.8 |
github.com/advisories/GHSA-6w8h-26xx-cf8q
github.com/xwiki/xwiki-platform/commit/2fc20891e6c6b0ca05ee07e315e7f435e8919f8d
github.com/xwiki/xwiki-platform/commit/59ccca24a8465a19f40c51d65fcc2c09c1edea16
github.com/xwiki/xwiki-platform/security/advisories/GHSA-6w8h-26xx-cf8q
jira.xwiki.org/browse/XWIKI-19857
nvd.nist.gov/vuln/detail/CVE-2022-41934
www.xwiki.org/xwiki/bin/view/Documentation/UserGuide/Features/Imports#HImportingXWikipages