Vulnerability Database

319,592

Total vulnerabilities in the database

CVE-2023-42804

BigBlueButton is an open-source virtual classroom. BigBlueButton prior to version 2.6.0-beta.1 has a path traversal vulnerability that allows an attacker with a valid starting folder path, to traverse and read other files without authentication, assuming the files have certain extensions (txt, swf, svg, png). In version 2.6.0-beta.1, input validation was added on the parameters being passed and dangerous characters are stripped. There are no known workarounds.

  • Published: Oct 30, 2023
  • Updated: Nov 16, 2025
  • CVE: CVE-2023-42804
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 3.1
  • AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
bigbluebutton / bigbluebutton 2.6.0-alpha4 2.6.0-alpha4.x
bigbluebutton / bigbluebutton 2.6.0-alpha1 2.6.0-alpha1.x
bigbluebutton / bigbluebutton 2.6.0-alpha2 2.6.0-alpha2.x
bigbluebutton / bigbluebutton 2.6.0-alpha3 2.6.0-alpha3.x
bigbluebutton / bigbluebutton - 2.5.18.x