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CVE-2025-55200

nvd nist
Published: Oct 9, 2025Modified: Oct 20, 2025

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5.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Exploitability: 2.3 / Impact: 2.7
Source: NVD

Description

BigBlueButton is an open-source virtual classroom. In versions prior to 3.0.13, the "Shared Notes" feature contains a Stored Cross-Site Scripting (XSS) vulnerability with the input location being the "Username" field and the output location on the "Shared Notes" page, when a user with a malicious username is editing content. This vulnerability allows a low-privileged user to execute arbitrary JavaScript in the context of higher-privileged users (e.g., Admins) who open the Shared Notes page. Version 3.0.13 fixes the issue.

Affected (1)

Bigbluebutton
1 product
Bigbluebutton
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Bigbluebutton
Before 3.0.13

Related CWEs

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

Source: security-advisories@github.com
Issue TrackingProduct
Source: security-advisories@github.com
Release Notes
Source: security-advisories@github.com
Issue TrackingPatch
Source: security-advisories@github.com
Vendor Advisory

Timeline

No history available yet.