Executive brief
Apache OpenMeetings is a web-based application used for online training, web conferencing, and document sharing. A security flaw allows any registered user to view the metadata of files and folders they should not have access to, such as file names and internal IDs. While the actual contents of the files remain protected, this exposure could allow an attacker to map out the internal file structure and gather information about sensitive documents or organizational activities.
Technical details
An Improper Handling of Insufficient Privileges vulnerability (CWE-274) exists in the FileWebService component of Apache OpenMeetings. The root cause is a failure to perform adequate authorization checks when a registered user queries the web service for file or folder information by ID. By providing valid credentials, an authenticated attacker can retrieve FileItemDTO objects containing metadata—including names, types, hashes, and parent IDs—for any folder on the system. The vulnerability does not allow access to the actual file contents, only the metadata. This issue is resolved in version 9.0.0.
Affected products
- Apache OpenMeetings 3.1.0 to 8.0.0 (before 9.0.0)
Timeline
- 2026-04-09: disclosed
- 2026-04-09: advisory
- 2026-04-09: patched: Version 9.0.0 released