CVE-2021-48017 (GCVE-0-2021-48017)

Vulnerability from cvelistv5 – Published: 2026-10-22 10:57 – Updated: 2026-10-22 10:57 X_Known Exploited Vulnerability
VLAI Previdian
Title
OrbiTeam BSCW Server < 5.2.5 / 7.4.4 Path Traversal via bscw.cgi
Summary
OrbiTeam BSCW Server 5.x before 5.2.5 and 7.x before 7.4.4 contains an unauthenticated path traversal vulnerability in the style_name parameter of the theme operation. Attackers can send GET requests to /pub/bscw.cgi/<id>?op=theme with ../ sequences in style_name to read local files such as /etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22.
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
OrbiTeam BSCW Server Affected: 5.0.0 , < 5.2.5 (custom)
Affected: 7.0.0 , < 7.4.4 (custom)
guessed Create a notification for this product.
Date Public
2021-12-02 00:00
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2021-48017

Status: Confirmed

Status Updated: 2026-10-22 11:10 UTC

Exploited: Yes


Timestamps
First Seen: 2026-10-22
Asserted: 2026-10-22

Scope
Notes: OrbiTeam BSCW Server < 5.2.5 / 7.4.4 Path Traversal via bscw.cgi | Affected: OrbiTeam / BSCW Server | CVSS: 8.7 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian


Details
Feed Previdian (previdian.com)
Title OrbiTeam BSCW Server < 5.2.5 / 7.4.4 Path Traversal via bscw.cgi
Cve Id CVE-2021-48017
Vendor OrbiTeam
Ghsa Id None
Product BSCW Server
Added Date 2026-10-22T11:10:53.693Z
Cvss Score 8.7
Epss Score None
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile None
Used In Malware unknown
Vulnerability Id CVE-2021-48017
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True

References

Created: 2026-10-23 12:00 UTC | Updated: 2026-10-23 12:00 UTC
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "BSCW Server",
          "vendor": "OrbiTeam",
          "versions": [
            {
              "lessThan": "5.2.5",
              "status": "affected",
              "version": "5.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "7.4.4",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Armin Stock (Atos ODS) of SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "The Shadowserver Foundation"
        }
      ],
      "datePublic": "2021-12-02T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "OrbiTeam BSCW Server 5.x before 5.2.5 and 7.x before 7.4.4 contains an unauthenticated path traversal vulnerability in the style_name parameter of the theme operation. Attackers can send GET requests to /pub/bscw.cgi/\u003cid\u003e?op=theme with ../ sequences in style_name to read local files such as /etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
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            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-22T10:57:31.855Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Archived SEC Consult SA-20211202-0",
          "tags": [
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          "url": "https://web.archive.org/web/20260421125237/https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-bscw-server/"
        },
        {
          "name": "Packet Storm 165156",
          "tags": [
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          "url": "https://packetstorm.news/files/id/165156/"
        },
        {
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          "tags": [
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          "url": "https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/orbiteam-bscw-server-lfi.yaml"
        },
        {
          "name": "VulnCheck Advisory: OrbiTeam BSCW Server \u003c 5.2.5 / 7.4.4 Path Traversal via bscw.cgi",
          "tags": [
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          ],
          "url": "https://www.vulncheck.com/advisories/orbiteam-bscw-server-5.2.5-7.4.4-path-traversal-via-bscw-cgi"
        }
      ],
      "source": {
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      "title": "OrbiTeam BSCW Server \u003c 5.2.5 / 7.4.4 Path Traversal via bscw.cgi",
      "x_generator": {
        "engine": "vulncheck-kclub"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2021-48017",
    "datePublished": "2026-10-22T10:57:31.855Z",
    "dateReserved": "2026-10-14T20:25:29.144Z",
    "dateUpdated": "2026-10-22T10:57:31.855Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-48017",
      "date": "2026-10-24",
      "epss": "0.00428",
      "percentile": "0.36054"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "BSCW Server",
                "vendor": "OrbiTeam",
                "versions": [
                  {
                    "lessThan": "5.2.5",
                    "status": "affected",
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                    "status": "affected",
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                    "versionType": "custom"
                  }
                ]
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            ],
            "source": "disclosure@vulncheck.com"
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "OrbiTeam BSCW Server 5.x before 5.2.5 and 7.x before 7.4.4 contains an unauthenticated path traversal vulnerability in the style_name parameter of the theme operation. Attackers can send GET requests to /pub/bscw.cgi/\u003cid\u003e?op=theme with ../ sequences in style_name to read local files such as /etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22."
          }
        ],
        "id": "CVE-2021-48017",
        "lastModified": "2026-10-22T17:40:46.877",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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                "confidentialityImpact": "HIGH",
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                "Recovery": "NOT_DEFINED",
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                "availabilityRequirement": "NOT_DEFINED",
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                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
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                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
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            }
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    }
  }
}



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