Vulnerability in Bigbluebutton Greenlight
CVE-2020-26163
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
References
- www.sakshamanand.com/host-header-injection-bigbluebutton/ (Exploit, Third Party Advisory)
- github.com/bigbluebutton/greenlight/releases/tag/release-2.5.6 (Third Party Advisory)
- github.com/bigbluebutton/greenlight/pull/1543 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-26163?
- CVE-2020-26163 is a high-severity vulnerability in Bigbluebutton Greenlight. CVSS score: 8.8/10. Published 2020-09-30.
- How severe is CVE-2020-26163?
- High severity. CVSS v3 base score is 8.8 out of 10.