CVE-2023-26473

Description

### Impact Any user with edit right can execute arbitrary database select and access data stored in the database. To reproduce: * In admin, rights, remove scripting rights for {{XWikiAllGroup}}. * Create a new user without any special privileges. * Create a page "Private.WebHome" with {{TOKEN_42}} as content. Go to "page administration" and explicitly set all rights for "Admin" to remove them for all other users. * Logout and login as the unprivileged user. Ensure that the previously created page cannot be viewed. * Create a new page "ExploitClass.WebHome" and then open it in the class editor (first, make the user an advanced user). * Add a field named {{ContentList}} of type {{Database List}} * Enter in field "Hibernate Query" the following content: {noformat}select doc.content, doc.fullName from XWikiDocument as doc where doc.fullName = 'Private.WebHome'{noformat} * Save the class. * Open [http://localhost:8080/xwiki/bin/view/ExploitClass/?xpage=suggest&classname=ExploitClass.WebHome&fieldname=ContentList&firCol=doc.fullName&secCol=-] ### Patches The problem has been patched on XWiki 13.10.11, 14.4.7, and 14.10. ### Workarounds There is no workaround for this vulnerability other than upgrading. ### References https://jira.xwiki.org/browse/XWIKI-19523 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)

How to fix CVE-2023-26473

To remediate CVE-2023-26473, upgrade the affected package to a fixed version below.

• —upgrade to 13.10.11 or later

Is CVE-2023-26473 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• >= 1.3-rc-1, < 13.10.11