VULNERABILITY INTELLIGENCE

CVE-2023-42804

CVSS score3.1 LOW
EPSS probability0.55%
CISA KEVNot currently listed
Published2023-10-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-22

Primary references