Overview
CVE-2025-65089 describes a medium severity information disclosure vulnerability found in the XWiki Remote Macros, specifically the XWiki rendering macros designed to aid in content migration from Confluence. This flaw allows a user without view permissions on a specific page to potentially access the content of office attachments displayed using the `view file` macro. The vulnerability resides in versions prior to 1.27.0 of the XWiki Remote Macros package.
Technical Details
The vulnerability occurs because the `view file` macro in older versions of XWiki Remote Macros doesn’t properly enforce access control restrictions when rendering attached office documents. Consequently, if a page contains an office attachment rendered using this macro, a user without the necessary viewing rights for the page might still be able to see the attachment’s content. This is a significant security concern as it can lead to unauthorized access to sensitive information.
CVSS Analysis
This vulnerability has been assigned a CVSS score of 6.8, indicating a MEDIUM severity. The CVSS vector reflects the potential for information disclosure without requiring high privileges, emphasizing the moderate risk associated with this vulnerability.
Possible Impact
The potential impact of CVE-2025-65089 is primarily information disclosure. Successful exploitation could allow unauthorized users to access confidential data contained within office documents attached to XWiki pages. This could include sensitive business plans, personal information, or proprietary data, depending on the nature of the content stored within the XWiki instance. The exposure of this information can lead to reputation damage, legal repercussions, and potential financial loss.
Mitigation and Patch Steps
The recommended solution to address CVE-2025-65089 is to upgrade to version 1.27.0 or later of the XWiki Remote Macros package. This version contains the necessary patch to properly enforce access control restrictions on the `view file` macro, preventing unauthorized access to attachment content. Steps to mitigate the risk include:
- Upgrade XWiki Remote Macros: The most effective solution is to upgrade to version 1.27.0 or a later version. This can typically be done through the XWiki extension manager.
- Review Access Controls: Review access controls on sensitive pages and attachments to ensure that only authorized users have view permissions.
- Temporary Workaround (If immediate upgrade is not possible): Consider removing or disabling the `view file` macro from sensitive pages until the upgrade can be performed. However, this might impact the functionality of those pages.
