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NVD Vulnerability Details :
CVE-2020-36884
Awaiting Analysis
More InfoOfficial Page
Source-disclosure@vulncheck.com
View Known Exploited Vulnerability (KEV) details
Published At-10 Dec, 2025 | 21:16
Updated At-12 Dec, 2025 | 15:18

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.06.9MEDIUM
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
Type: Secondary
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
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
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-918Secondarydisclosure@vulncheck.com
CWE ID: CWE-918
Type: Secondary
Source: disclosure@vulncheck.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/zerosciencedisclosure@vulncheck.com
N/A
https://www.brightsign.bizdisclosure@vulncheck.com
N/A
https://www.exploit-db.com/exploits/48843disclosure@vulncheck.com
N/A
https://www.vulncheck.com/advisories/brightsign-digital-signage-diagnostic-web-server-unauthenticated-ssrfdisclosure@vulncheck.com
N/A
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5595.phpdisclosure@vulncheck.com
N/A
https://www.exploit-db.com/exploits/48843134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5595.php134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Hyperlink: https://github.com/zeroscience
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.brightsign.biz
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.exploit-db.com/exploits/48843
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.vulncheck.com/advisories/brightsign-digital-signage-diagnostic-web-server-unauthenticated-ssrf
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5595.php
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.exploit-db.com/exploits/48843
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A
Hyperlink: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5595.php
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A
Change History
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Details not found