Vulnerability 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.
CVSS Score
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bigbluebutton | Greenlight | < 2.5.6 |
References
- https://github.com/bigbluebutton/greenlight/pull/1543PatchThird Party Advisory
- https://github.com/bigbluebutton/greenlight/releases/tag/release-2.5.6Third Party Advisory
- https://www.sakshamanand.com/host-header-injection-bigbluebutton/ExploitThird Party Advisory
- https://github.com/bigbluebutton/greenlight/pull/1543PatchThird Party Advisory
- https://github.com/bigbluebutton/greenlight/releases/tag/release-2.5.6Third Party Advisory
- https://www.sakshamanand.com/host-header-injection-bigbluebutton/ExploitThird Party Advisory
FAQ
What is CVE-2020-26163?
CVE-2020-26163 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.
How severe is CVE-2020-26163?
CVE-2020-26163 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26163?
Check the references section above for vendor advisories and patch information. Affected products include: Bigbluebutton Greenlight.