Vulnerability Details : 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 2023-10-30 19:15:08
Updated 2023-11-07 23:17:43
Source GitHub, Inc.
View at NVD,   CVE.org
Vulnerability category: Directory traversal

Products affected by CVE-2023-42804

Exploit prediction scoring system (EPSS) score for CVE-2023-42804

EPSS FAQ
0.25%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-42804

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.3
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.9
1.4
 NIST
3.1
 LOW CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1.6
1.4
 GitHub, Inc.

CWE ids for CVE-2023-42804

  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by: security-advisories@github.com (Primary)

References for CVE-2023-42804

Jump to
This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!
Accept Close