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CVE-2020-28954

Date: November 19, 2020

web/controllers/ApiController.groovy in BigBlueButton before 2.2.29 lacks certain parameter sanitization, as demonstrated by accepting control characters in a user name.

Language: JS

Severity Score

Related Resources (6)

https://github.com/bigbluebutton/bigbluebutton/commit/5c911ddeec4493f40f42e2f137800ed4692004a4
https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.28...v2.2.29
https://nvd.nist.gov/vuln/detail/CVE-2020-28954
https://github.com/bigbluebutton/bigbluebutton/commit/e59bcd0c33a6a3203c011faa8823ba2cac1e4f37
https://github.com/bigbluebutton/bigbluebutton/issues/10818
https://www.mend.io/vulnerability-database/CVE-2020-28954

Severity Score

Weakness Type (CWE)

Improper Encoding or Escaping of Output

CWE-116

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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