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Medium 6.9Published Dec 10, 2025

CVE-2020-36884BrightSign Digital Signage Diagnostic Web Server 8.2.26 Unauthenticated SSRF

Updated under an hour ago ()

Does this affect you?

It affects BrightSign, LLC BrightSign Digital Signage Diagnostic Web Server. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.9 MEDIUM (v4.0, CNA)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
Weakness (CWE)
CWE-918
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Dec 11, 2025
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
BrightSign, LLC BrightSign Digital Signage Diagnostic Web Server
brightsign:digital_signage_diagnostic_web_server (from the name)
through 8.2.26
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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