github - ghsa-86rv-3v3v-xmw6

GHSA-86RV-3V3V-XMW6

Vulnerability from github – Published: 2025-12-10 21:31 – Updated: 2025-12-10 21:31

Details

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.

Severity ?

6.9 (Medium)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2020-36884"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-10T21:16:00Z",
    "severity": "MODERATE"
  },
  "details": "BrightSign Digital Signage Diagnostic Web Server 8.2.26 and less contains an unauthenticated server-side request forgery vulnerability in the \u0027url\u0027 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.",
  "id": "GHSA-86rv-3v3v-xmw6",
  "modified": "2025-12-10T21:31:37Z",
  "published": "2025-12-10T21:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36884"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zeroscience"
    },
    {
      "type": "WEB",
      "url": "https://www.brightsign.biz"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/48843"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/brightsign-digital-signage-diagnostic-web-server-unauthenticated-ssrf"
    },
    {
      "type": "WEB",
      "url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5595.php"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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": "CVSS_V4"
    }
  ]
}

CVE-2020-36884 (GCVE-0-2020-36884)

Vulnerability from cvelistv5 – Published: 2025-12-10 20:47 – Updated: 2025-12-11 18:53

Summary

Severity ?

6.9 (Medium)


                        
                          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

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

VulnCheck

References

URL

Tags

	https://www.exploit-db.com/exploits/48843	exploit
	https://www.brightsign.biz	product
	https://www.zeroscience.mk/en/vulnerabilities/ZSL…	third-party-advisory
	https://github.com/zeroscience	issue-tracking
	https://www.vulncheck.com/advisories/brightsign-d…	third-party-advisory

Impacted products

	Vendor	Product	Version
	BrightSign, LLC	BrightSign Digital Signage Diagnostic Web Server	Affected: 0 , ≤ 8.2.26 (semver)

Credits

LiquidWorm as Gjoko Krstic of Zero Science Lab

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2020-36884",
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-11T16:04:12.039318Z",
                "version": "2.0.3"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-86RV-3V3V-XMW6

CVE-2020-36884 (GCVE-0-2020-36884)

Tags

Sightings

Nomenclature