CVEvulnerability

CVE-2026-46353

8.1 HIGH Published 2026-07-16 Modified 2026-07-17 Official page ↗

Status: Deferred
Published: 2026-07-16
Last modified: 2026-07-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weaknesses: CWE-284

Description

BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web checksum validation could be bypassed when a presentationUploadExternalUrl parameter was supplied to API request handling in CreateMeeting.java and ValidationService.java, allowing a user to send valid requests to some endpoints without a checksum. This issue is fixed in version 3.0.21.

Weakness · CWE (1)

CWE-284 Improper Access Control weakness

References

https://github.com/bigbluebutton/bigbluebutton/commit/36fd1b407488a0c56ce620b91184d5a8aea68b3d github.com
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v3.0.21 github.com
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-43hc-5g2m-cqff github.com

CVE-2026-46353

Description

Related

Weakness · CWE (1)

References