CVE-2025-55200 (GCVE-0-2025-55200)
Vulnerability from cvelistv5 – Published: 2025-10-09 18:51 – Updated: 2025-10-09 19:08
VLAI
EPSS
VEX
Title
BigBlueButton vulnerable to Stored XSS via name of user at Shared Notes
Summary
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.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-09 19:08 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/bigbluebutton/bigbluebutton/se… | x_refsource_CONFIRM |
| https://github.com/bigbluebutton/bbb-pads/pull/67 | x_refsource_MISC |
| https://github.com/bigbluebutton/bigbluebutton/pu… | x_refsource_MISC |
| https://github.com/bigbluebutton/bbb-pads/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 3.0.13
|
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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