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Critical severity9.6NVD Advisory· Published Oct 6, 2020· Updated Jun 17, 2026

CVE-2020-26574

CVE-2020-26574

Description

Leostream Connection Broker 8.2.x is affected by stored XSS. An unauthenticated attacker can inject arbitrary JavaScript code via the webquery.pl User-Agent HTTP header. It is rendered by the admins the next time they log in. The JavaScript injected can be used to force the admin to upload a malicious Perl script that will be executed as root via libMisc::browser_client. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

AI Insight

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Affected products

3
  • Leostream/Connection Broker2 versions
    cpe:2.3:a:leostream:connection_broker:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:leostream:connection_broker:*:*:*:*:*:*:*:*range: >=8.2.15,<=8.2.73
    • (no CPE)range: 8.2.x
  • Leostream/Connection Brokerdescription

Patches

Vulnerability mechanics

References

2

News mentions

0

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