CVE-2023-33176

BigBlueButton is an open source virtual classroom designed to help teachers teach and learners learn. In affected versions are affected by a Server-Side Request Forgery SSRF vulnerability. In an insertDocument API request the user is able to supply a URL from which the presentation should be...

Server side request forgery (ssrf)

BigBlueButton is an open source virtual classroom designed to help teachers teach and learners learn. In affected versions are affected by a Server-Side Request Forgery SSRF vulnerability. In an insertDocument API request the user is able to supply a URL from which the presentation should be...

CVE-2020-27604: Improper Encoding or Escaping of Output

BigBlueButton before 2.3 does not implement LibreOffice sandboxing. This might make it easier for remote authenticated users to read the API shared secret in the bigbluebutton.properties file. With the API shared secret, an attacker can for example use api/join to join an arbitrary meeting...

CVE-2020-12443: Improper Limitation of a Pathname to a Restricted Directory

BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename lowercase value can be a .pdf filename while the presFilename mixed case value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to...