Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') Affecting org.xwiki.platform:xwiki-platform-oldcore package, versions [3.3-milestone-1,13.10.11) [14.0-rc-1,14.4.8) [14.5,14.10.2)
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Test your applications- Snyk ID SNYK-JAVA-ORGXWIKIPLATFORM-5441640
- published 21 Apr 2023
- disclosed 20 Apr 2023
- credit Unknown
Introduced: 20 Apr 2023
CVE-2023-29523 Open this link in a new tabHow to fix?
Upgrade org.xwiki.platform:xwiki-platform-oldcore to version 13.10.11, 14.4.8, 14.10.2 or higher.
Overview
org.xwiki.platform:xwiki-platform-oldcore is a generic wiki platform offering runtime services for applications built on top of it.
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') such that any user who can edit their own user profile can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents.
PoC
{{html wiki="true"}}~{~{~/~h~t~m~l~}~}~ ~{~{~c~a~c~h~e~}~}~{~{~g~r~o~o~v~y~}~}~p~r~i~n~t~l~n~(~1~)~{~{~/~g~r~o~o~v~y~}~}~{~{~/~c~a~c~h~e~}~}~{{/html}}