CVE-2023-26472

XWiki Platform is a generic wiki platform. Starting in version 6.2-milestone-1, one can execute any wiki content with the right of IconThemeSheet author by creating an icon theme with certain content. This can be done by creating a new page or even through the user profile for users not having edit right. The issue has been patched in XWiki 14.9, 14.4.6, and 13.10.10. An available workaround is to fix the bug in the page `IconThemesCode.IconThemeSheet` by applying a modification from commit 48caf7491595238af2b531026a614221d5d61f38.

XWiki Platform is a generic wiki platform. Starting in version 6.2-milestone-1, one can execute any wiki content with the right of IconThemeSheet author by creating an icon theme with certain content. This can be done by creating a new page or even through the user profile for users not having edit right. The issue has been patched in XWiki 14.9, 14.4.6, and 13.10.10. An available workaround is to fix the bug in the page `IconThemesCode.IconThemeSheet` by applying a modification from commit 48caf7491595238af2b531026a614221d5d61f38.

### Impact One can execute any wiki content with the right of IconThemeSheet author by creating an icon theme with the following content: ``` }}} {{async async="true"}} {{groovy}} println("Hello from Groovy!") {{/groovy}} {{/async}} {{{ ``` Can be done by creating a new page or even through the user profile for users not having edit right. ### Patches This has been patched in XWiki 14.9, 14.4.6, and 13.10.10. ### Workarounds An easy workaround is to actually fix the bug in the page `IconThemesCode.IconThemeSheet` by applying the following modification: https://github.com/xwiki/xwiki-platform/commit/48caf7491595238af2b531026a614221d5d61f38#diff-2ec9d716673ee049937219cdb0a92e520f81da14ea84d144504b97ab2bdae243R45 ### References https://jira.xwiki.org/browse/XWIKI-19731 ### 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)

### Impact One can execute any wiki content with the right of IconThemeSheet author by creating an icon theme with the following content: ``` }}} {{async async="true"}} {{groovy}} println("Hello from Groovy!") {{/groovy}} {{/async}} {{{ ``` Can be done by creating a new page or even through the user profile for users not having edit right. ### Patches This has been patched in XWiki 14.9, 14.4.6, and 13.10.10. ### Workarounds An easy workaround is to actually fix the bug in the page `IconThemesCode.IconThemeSheet` by applying the following modification: https://github.com/xwiki/xwiki-platform/commit/48caf7491595238af2b531026a614221d5d61f38#diff-2ec9d716673ee049937219cdb0a92e520f81da14ea84d144504b97ab2bdae243R45 ### References https://jira.xwiki.org/browse/XWIKI-19731 ### 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)