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    2 vulnerabilities found for backdrop by backdrop

    CVE-2026-104476 (GCVE-0-2026-104476)

    Vulnerability from nvd – Published: 2026-10-02 23:28 – Updated: 2026-10-02 23:28
    VLAI
    Title
    Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive
    Summary
    Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings.
    Severity
    8.2 (High)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    Assigner
    References
    Impacted products
    Vendor Product Version
    backdrop backdrop Affected: 0 , < 1.35.1 (semver)
    Unaffected: 1.35.1 (semver)
        cpe:2.3:a:backdropcms:backdrop:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-09-23 00:00
    Credits
    Dilip Choudhary
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "backdrop",
          "vendor": "backdrop",
          "versions": [
            {
              "lessThan": "1.35.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.35.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:backdropcms:backdrop:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.35.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dilip Choudhary"
        }
      ],
      "datePublic": "2026-09-23T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
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            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
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      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "Exposure of Sensitive Information to an Unauthorized Actor",
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              "type": "CWE"
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          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-02T23:28:46.804Z",
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          "url": "https://github.com/backdrop/backdrop/commit/1ae67061d9d487bb6cb3b8611191354052f34749"
        },
        {
          "name": "BACKDROP-SA-CORE-2026-006",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://backdropcms.org/security/backdrop-sa-core-2026-006"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/backdrop/backdrop"
        },
        {
          "name": "VulnCheck Advisory: Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/backdrop-cms-before-1.35.1-information-disclosure-via-configuration-export-archive"
        }
      ],
      "title": "Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-104476",
    "datePublished": "2026-10-02T23:28:46.804Z",
    "dateReserved": "2026-10-02T00:55:58.388Z",
    "dateUpdated": "2026-10-02T23:28:46.804Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-104476 (GCVE-0-2026-104476)

    Vulnerability from cvelistv5 – Published: 2026-10-02 23:28 – Updated: 2026-10-02 23:28
    VLAI
    Title
    Backdrop CMS before 1.35.1 Information Disclosure via Configuration Export Archive
    Summary
    Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings.
    Severity
    8.2 (High)
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    Assigner
    References
    Impacted products
    Vendor Product Version
    backdrop backdrop Affected: 0 , < 1.35.1 (semver)
    Unaffected: 1.35.1 (semver)
        cpe:2.3:a:backdropcms:backdrop:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Date Public
    2026-09-23 00:00
    Credits
    Dilip Choudhary
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "backdrop",
          "vendor": "backdrop",
          "versions": [
            {
              "lessThan": "1.35.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.35.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:backdropcms:backdrop:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.35.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dilip Choudhary"
        }
      ],
      "datePublic": "2026-09-23T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Backdrop CMS before 1.35.1 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve configuration export archives left on the server after transfer. Attackers can download compressed archives generated by users with configuration export permission to obtain the full site configuration, including sensitive settings."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
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            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
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            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
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        },
        {
          "name": "BACKDROP-SA-CORE-2026-006",
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            "vendor-advisory"
          ],
          "url": "https://backdropcms.org/security/backdrop-sa-core-2026-006"
        },
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          ],
          "url": "https://github.com/backdrop/backdrop"
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