CVE-2023-29507

Description

### Impact The Document script API returns directly a DocumentAuthors allowing to set any authors to the document, which in consequence can allow subsequent executions of scripts since this author is used for checking rights. Example of such attack: ``` {{velocity}} $doc.setContent('{{velocity}}$xcontext.context.authorReference{{/velocity}}') $doc.authors.setContentAuthor('xwiki:XWiki.superadmin') $doc.getRenderedContent() {{/velocity}} ``` ### Patches The problem has been patched in XWiki 14.10 and 14.4.7 by returning a safe script API. ### Workarounds There no easy workaround apart of upgrading. ### References * https://jira.xwiki.org/browse/XWIKI-20380 * https://github.com/xwiki/xwiki-platform/commit/905cdd7c421dbf8c565557cdc773ab1aa9028f83 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira](https://jira.xwiki.org) * Email us at [security ML](mailto:security@xwiki.org)

How to fix CVE-2023-29507

To remediate CVE-2023-29507, upgrade the affected package to a fixed version below.

• —upgrade to 14.10 or later

Is CVE-2023-29507 being exploited?

Moderate — EPSS is 9.9%. Track this CVE but it's not at the top of the prioritisation list.

Affected packages (1)

• >= 14.5, < 14.10

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-29507
• PATCHgithub.com/xwiki/xwiki-platform
• WEBgithub.com/xwiki/xwiki-platform/commit/905cdd7c421dbf8c565557cdc773ab1aa9028f83
• WEBgithub.com/xwiki/xwiki-platform/security/advisories/GHSA-pwfv-3cvg-9m4c