XWiki-Platform - Information Disclosure (CVE-2025-46554)

CVE-2025-46554 is a vulnerability in XWiki that allows unauthenticated users to access metadata of any attachment via the REST endpoint, regardless of user permissions. This flaw could enable attackers to gather sensitive information about files stored in private wikis, potentially aiding in further targeted attacks or reconnaissance.

CrowdSec has been tracking this vulnerability and its exploits since 3rd of September 2025.

CrowdSec network observations suggest that most exploitation of CVE-2025-46554 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. Data from the CrowdSec community also indicates a gradual decrease in attacks targeting CVE-2025-46554. While still present in the wild, exploitation levels have dropped noticeably week-over-week. This may signal that the vulnerability is becoming less relevant or that defenses are improving fast enough for attackers to lose interest.

Attackers exploit this vulnerability by sending unauthenticated GET requests to REST API endpoints containing /rest/wikis/xwiki/spaces/ or /xwiki/rest/wikis/xwiki/spaces/ followed by /attachments, allowing them to enumerate and access metadata of attachments stored in XWiki.