CVE-2022-26497 is a medium-severity Cross-Site Scripting (XSS) vulnerability affecting BigBlueButton Greenlight version 2.11.1. An attacker can embed a JavaScript payload within their username, which executes in a victim's browser when they view the "Share room access" dialog, provided the victim previously shared access with the attacker. The CVSS score is 5.4 (MEDIUM), indicating a low-privileged, user-interaction-dependent attack with limited impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.11.1CPE matchmatch criteria | cpe:2.3:a:bigbluebutton:greenlight:2.11.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.