FKIE_CVE-2021-39327

Vulnerability from fkie_nvd - Published: 2021-09-17 11:15 - Updated: 2026-06-17 04:03
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
The BulletProof Security WordPress plugin is vulnerable to sensitive information disclosure due to a file path disclosure in the publicly accessible ~/db_backup_log.txt file which grants attackers the full path of the site, in addition to the path of database backup files. This affects versions up to, and including, 5.1.
References
security@wordfence.comhttp://packetstormsecurity.com/files/164420/WordPress-BulletProof-Security-5.1-Information-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
security@wordfence.comhttps://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2021-39327Exploit, Third Party Advisory
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2591118%40bulletproof-security&new=2591118%40bulletproof-security&sfp_email=&sfph_mail=Patch, Third Party Advisory
security@wordfence.comhttps://www.exploit-db.com/exploits/50382Exploit, Third Party Advisory, VDB Entry
security@wordfence.comhttps://www.wordfence.com/vulnerability-advisories/#CVE-2021-39327Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/164420/WordPress-BulletProof-Security-5.1-Information-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2021-39327Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2591118%40bulletproof-security&new=2591118%40bulletproof-security&sfp_email=&sfph_mail=Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/50382Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39327Third Party Advisory
Impacted products
Vendor Product Version
ait-pro bulletproof_security *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "BulletProof Security",
          "vendor": "AITpro",
          "versions": [
            {
              "lessThanOrEqual": "5.1",
              "status": "affected",
              "version": "5.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ait-pro:bulletproof_security:*:*:*:*:*:wordpress:*:*",
              "matchCriteriaId": "F41E2B5F-BB18-4CAE-B3ED-FAA663B2F397",
              "versionEndIncluding": "5.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The BulletProof Security WordPress plugin is vulnerable to sensitive information disclosure due to a file path disclosure in the publicly accessible ~/db_backup_log.txt file which grants attackers the full path of the site, in addition to the path of database backup files. This affects versions up to, and including, 5.1."
    },
    {
      "lang": "es",
      "value": "El plugin BulletProof Security de WordPress es vulnerable a una divulgaci\u00f3n de informaci\u00f3n confidencial debido a una divulgaci\u00f3n de la ruta de archivos en el archivo ~/db_backup_log.txt de acceso p\u00fablico que otorga a los atacantes la ruta completa del sitio, adem\u00e1s de la ruta de los archivos de copia de seguridad de la base de datos. Esto afecta a las versiones hasta la 5.1, incluy\u00e9ndola"
    }
  ],
  "id": "CVE-2021-39327",
  "lastModified": "2026-06-17T04:03:33.287",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-39327",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-31T18:21:40.049342Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-09-17T11:15:08.647",
  "references": [
    {
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/164420/WordPress-BulletProof-Security-5.1-Information-Disclosure.html"
    },
    {
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2021-39327"
    },
    {
      "source": "security@wordfence.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=2591118%40bulletproof-security\u0026new=2591118%40bulletproof-security\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/50382"
    },
    {
      "source": "security@wordfence.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39327"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/164420/WordPress-BulletProof-Security-5.1-Information-Disclosure.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Hacker5preme/Exploits/tree/main/Wordpress/CVE-2021-39327"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=2591118%40bulletproof-security\u0026new=2591118%40bulletproof-security\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/50382"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39327"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-459"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.