CVE-2020-28954
MEDIUM
5.3
CVSS Score
Published: November 19, 2020 at 09:14 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorBigbluebutton
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Severity
MEDIUM5.3
Exploit prediction
EPSS 1%
Description
web/controllers/ApiController.groovy in BigBlueButton before 2.2.29 lacks certain parameter sanitization, as demonstrated by accepting control characters in a user name.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.2.29
Affected range stops below 2.2.29, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/bigbluebutton/bigbluebutton/commit/5c911ddeec4493f40f42e2f137800ed4692004a4x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/bigbluebutton/bigbluebutton/commit/e59bcd0c33a6a3203c011faa8823ba2cac1e4f37x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.28...v2.2.29x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/bigbluebutton/bigbluebutton/issues/10818CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-116
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