CVE-2020-26163

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

BigBlueButton Greenlight before 2.5.6 allows HTTP header (Host and Origin) attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/bigbluebutton/greenlight/pull/1543Patch, Third Party Advisory
https://github.com/bigbluebutton/greenlight/releases/tag/release-2.5.6Third Party Advisory
https://www.sakshamanand.com/host-header-injection-bigbluebutton/Exploit, Third Party Advisory
https://github.com/bigbluebutton/greenlight/pull/1543Patch, Third Party Advisory
https://github.com/bigbluebutton/greenlight/releases/tag/release-2.5.6Third Party Advisory
https://www.sakshamanand.com/host-header-injection-bigbluebutton/Exploit, Third Party Advisory

Timeline

Published: Sep 30, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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