CVE-2020-36884

published 2025-12-10

CVE-2020-36884: BrightSign Digital Signage Diagnostic Web Server 8.2.26 and less contains an unauthenticated server-side request forgery vulnerability in the 'url' GET…

Priority P3 53 medium 6.9 CVSS 4.0

AV N AC L AT N PR N UI N VC N VI L VA N SC L SI L SA L E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

EXPLOIT

BrightSign Digital Signage Diagnostic Web Server 8.2.26 and less contains an unauthenticated server-side request forgery vulnerability in the 'url' GET parameter of the Download Speed Test service. Attackers can specify external domains to bypass firewalls and perform network enumeration by forcing the application to make arbitrary HTTP requests to internal network hosts.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
brightsign_llc	brightsign_digital_signage_diagnostic_web_server	<= 8.2.26	—

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