Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2023-42803 First vendor Publication 2023-10-30
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 8.8
Base Score 8.8 Environmental Score 8.8
impact SubScore 5.9 Temporal Score 8.8
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

BigBlueButton is an open-source virtual classroom. BigBlueButton prior to version 2.6.0-beta.2 is vulnerable to unrestricted file upload, where the insertDocument API call does not validate the given file extension before saving the file, and does not remove it in case of validation failures. BigBlueButton 2.6.0-beta.2 contains a patch. There are no known workarounds.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42803

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-434 Unrestricted Upload of File with Dangerous Type (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 33

Sources (Detail)

Source Url
MISC https://github.com/bigbluebutton/bigbluebutton/pull/15990
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-w98f-...

Alert History

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Date Informations
2023-11-08 05:27:30
  • Multiple Updates
2023-10-31 17:27:21
  • Multiple Updates
2023-10-30 21:27:23
  • First insertion