1. Home
  2. CVE Database
  3. CVE-2023-42803
MEDIUM · 5.3

CVE-2023-42803

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 ...

Vulnerability Description

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.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
BigbluebuttonBigbluebutton<= 2.5.18

Related Weaknesses (CWE)

CWE-434

References

FAQ

What is CVE-2023-42803?

CVE-2023-42803 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ...

How severe is CVE-2023-42803?

CVE-2023-42803 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-42803?

Check the references section above for vendor advisories and patch information. Affected products include: Bigbluebutton Bigbluebutton.