CVE-2021-4143

Cross-site Scripting (XSS) - Generic in bigbluebutton/bigbluebutton

View on CVE.org

Published Jan 19, 2022 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Description

Cross-site Scripting (XSS) - Generic in GitHub repository bigbluebutton/bigbluebutton prior to 2.4.0.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

bigbluebutton

bigbluebutton/bigbluebutton

affected

Version	Status	Constraints
`unspecified`	affected	< 2.4.0

Configuration 1 [-]

cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-34012	Cross-site Scripting (XSS) - Generic in GitHub repository bigbluebutton/bigbluebutton prior to 2.4.0.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.920% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/bigbluebutton/bigbluebutton/commit/62040bdcb3c2f993ba72ab89f4db2015e18d1706
https://huntr.dev/bounties/e67603e6-8497-4ab6-b93a-02c26407d443

History

Jul 15, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00295}`	epss `{'score': 0.00311}`

Subscriptions

Bigbluebutton Bigbluebutton

Weaknesses

CWE-79

Sources

CVE record Updated: Aug 3, 2024, 5:16 PM

Status: PUBLISHED
Assigner: @huntrdev
Published: Jan 19, 2022, 10:20 PM
Updated: Aug 3, 2024, 5:16 PM
Reserved: Dec 20, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:19 AM

Status: Modified
Published: Jan 19, 2022, 11:15 PM
Modified: Jun 17, 2026, 4:19 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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