Apache OpenMeetings 1.0.0 doesn't check contents of files being uploaded. An attacker can cause a denial of service by uploading multiple large files to the server.

Apache OpenMeetings 1.0.0 updates user password in insecure manner.

Apache OpenMeetings 1.0.0 has an overly permissive crossdomain.xml file. This allows for flash content to be loaded from untrusted domains.

Apache OpenMeetings 1.0.0 is vulnerable to Cross-Site Request Forgery (CSRF) attacks, XSS attacks, click-jacking, and MIME based attacks.

Apache OpenMeetings 1.0.0 is vulnerable to SQL injection. This allows authenticated users to modify the structure of the existing query and leak the structure of other queries being made by the application in the back-end.

Apache OpenMeetings 1.0.0 displays Tomcat version and detailed error stack trace, which is not secure.

The (1) FileService.importFileByInternalUserId and (2) FileService.importFile SOAP API methods in Apache OpenMeetings before 3.1.1 improperly use the Java URL class without checking the specified protocol handler, which allows remote attackers to read arbitrary files by attempting to upload a file.

The sendHashByUser function in Apache OpenMeetings before 3.1.1 generates predictable password reset tokens, which makes it easier for remote attackers to reset arbitrary user passwords by leveraging knowledge of a user name and the current system time.