CVE-2020-12443 is a critical directory traversal vulnerability affecting BigBlueButton versions prior to 2.2.6. It allows unauthenticated remote attackers to read arbitrary files, including sensitive configuration files like bigbluebutton.properties, due to an ineffective case-insensitive NGINX mitigation for a previous vulnerability. This flaw carries a CVSS score of 9.8 (Critical), indicating a high potential for complete compromise of confidentiality, integrity, and availability with low attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, suggesting awareness among researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.2.6CPE matchmatch criteria | cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.