CVE-2020-26574 is a critical stored Cross-Site Scripting (XSS) vulnerability affecting Leostream Connection Broker 8.2.x, specifically products no longer supported by the vendor. An unauthenticated attacker can inject malicious JavaScript into the User-Agent HTTP header, which executes when an administrator logs in. This JavaScript can force the admin to upload and execute a malicious Perl script as root. With a CVSS score of 9.6, this vulnerability poses a severe risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness despite the lack of media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 8.2.15, <= 8.2.73CPE matchmatch criteria | cpe:2.3:a:leostream:connection_broker:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 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 0.1 Security Researcher mentions.
Remediation records are not available for this CVE.