SB2023062657 - Server-Side Request Forgery (SSRF) in BigBlueButton

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Main Vulnerability Database SB2023062657

SB2023062657 - Server-Side Request Forgery (SSRF) in BigBlueButton

Published: June 26, 2023 Updated: April 14, 2026

Security Bulletin ID SB2023062657
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2023-33176)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service and disclose sensitive information.

The vulnerability exists due to server-side request forgery in the insertDocument API request handling when downloading a presentation from a user-supplied URL. A remote attacker can supply a crafted URL to cause a denial of service and disclose sensitive information.

Exploitation requires knowledge of the API Secret Salt.


Remediation

Install update from vendor's website.

References