FKIE_CVE-2026-27508

Vulnerability from fkie_nvd - Published: 2026-03-30 17:16 - Updated: 2026-06-17 10:27
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Smoothwall Express versions prior to 3.1 Update 13 contain a reflected cross-site scripting vulnerability in the /redirect.cgi endpoint due to improper sanitation of the url parameter. Attackers can craft malicious URLs with javascript: schemes that execute arbitrary JavaScript in victims' browsers when clicked through the unsanitized link.
References
disclosure@vulncheck.comhttps://community.smoothwall.org/forum/viewtopic.php?t=45095Product, Release Notes
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameterThird Party Advisory
Impacted products
Vendor Product Version
smoothwall smoothwall_express *
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
smoothwall smoothwall_express 3.1
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Express",
          "vendor": "Smoothwall",
          "versions": [
            {
              "lessThan": "3.1 Update 13",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F0BC090B-12A9-4A0E-9BD2-EFA56B569432",
              "versionEndIncluding": "3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update1:*:*:-:*:*:*",
              "matchCriteriaId": "714B3296-7323-4920-8832-827C697ABED8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update10:*:*:-:*:*:*",
              "matchCriteriaId": "07EF8E3A-93A2-4A5A-A077-B692D7B4D92F",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "2B3D4296-EE7C-46FD-A734-419DC0BDFB7A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update12:*:*:-:*:*:*",
              "matchCriteriaId": "230A2DC9-DE28-4D18-99B8-0567CE99969C",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "5F0EED85-4850-4303-9529-E45868061C90",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update3:*:*:-:*:*:*",
              "matchCriteriaId": "0A0D511A-9CBB-4586-BF80-AAC12101B9E4",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "2999F419-BAF9-4660-8983-BB5A8374450E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update5:*:*:-:*:*:*",
              "matchCriteriaId": "83811BB5-B833-4594-823D-C47CB8499DD0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update6:*:*:-:*:*:*",
              "matchCriteriaId": "E2A35B5F-2BFD-43D2-B0AC-EFCA7A5A8E2C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update7:*:*:-:*:*:*",
              "matchCriteriaId": "60C265FF-2CB3-4A44-9017-451D06E2CBE4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update8:*:*:-:*:*:*",
              "matchCriteriaId": "E5DB05A8-F012-4258-82B9-B42884F88722",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:smoothwall:smoothwall_express:3.1:update9:*:*:-:*:*:*",
              "matchCriteriaId": "D5EF08B4-276D-4EE1-A079-3A2E61FED713",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Smoothwall Express versions prior to 3.1 Update 13 contain a reflected cross-site scripting vulnerability in the /redirect.cgi endpoint due to improper sanitation of the url parameter. Attackers can craft malicious URLs with javascript: schemes that execute arbitrary JavaScript in victims\u0027 browsers when clicked through the unsanitized link."
    },
    {
      "lang": "es",
      "value": "Las versiones de Smoothwall Express anteriores a 3.1 Update 13 contienen una vulnerabilidad de cross-site scripting reflejado en el endpoint /redirect.cgi debido a una sanitizaci\u00f3n inadecuada del par\u00e1metro url. Los atacantes pueden crear URLs maliciosas con esquemas javascript: que ejecutan JavaScript arbitrario en los navegadores de las v\u00edctimas cuando se hace clic en el enlace no sanitizado."
    }
  ],
  "id": "CVE-2026-27508",
  "lastModified": "2026-06-17T10:27:16.480",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.1,
          "baseSeverity": "MEDIUM",
          "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": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-27508",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-31T17:51:51.058978Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-30T17:16:15.440",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://community.smoothwall.org/forum/viewtopic.php?t=45095"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/smoothwall-express-reflected-xss-in-redirect-cgi-via-url-parameter"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}



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