CVE-2023-42804

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.

Reserved 2023-09-14 | Published 2023-10-30 | Updated 2024-09-05 | Assigner GitHub_M

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 2.6.0-beta.1
affected

References

github.com/...button/security/advisories/GHSA-3qjg-229m-vq84

github.com/bigbluebutton/bigbluebutton/pull/15960

cve.org (CVE-2023-42804)

nvd.nist.gov (CVE-2023-42804)

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