« Back to list

CVE-2019-8942

Status: ModifiedHigh (8.8)—💥 Exploit

WordPress before 4.9.9 and 5.x before 5.0.1 allows remote code execution because an _wp_attached_file Post Meta entry can be changed to an arbitrary string, such as one ending with a .jpg?file.php substring. An attacker with author privileges can execute arbitrary code by uploading a crafted image containing PHP code in the Exif metadata. Exploitation can leverage CVE-2019-8943.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (2)

Debian — Debian LinuxWordpress — Wordpress

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2019-8942",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-02-20T03:29:00.250",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/152396/WordPress-5.0.0-crop-image-Shell-Upload.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.rapid7.com/db/modules/exploit/multi/http/wp_crop_rce",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/107088",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://blog.ripstech.com/2019/wordpress-image-remote-code-execution/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://wpvulndb.com/vulnerabilities/9222",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.debian.org/security/2019/dsa-4401",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.exploit-db.com/exploits/46511/",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.exploit-db.com/exploits/46662/",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://packetstormsecurity.com/files/152396/WordPress-5.0.0-crop-image-Shell-Upload.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.rapid7.com/db/modules/exploit/multi/http/wp_crop_rce",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/107088",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://blog.ripstech.com/2019/wordpress-image-remote-code-execution/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wpvulndb.com/vulnerabilities/9222",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2019/dsa-4401",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/exploits/46511/",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/exploits/46662/",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "WordPress before 4.9.9 and 5.x before 5.0.1 allows remote code execution because an _wp_attached_file Post Meta entry can be changed to an arbitrary string, such as one ending with a .jpg?file.php substring. An attacker with author privileges can execute arbitrary code by uploading a crafted image containing PHP code in the Exif metadata. Exploitation can leverage CVE-2019-8943."
    },
    {
      "lang": "es",
      "value": "WordPress, en versiones anteriores a la 4.99 y en las 5.x anteriores a la 5.0.1, permite la ejecución remota de código debido a que una entrada \"Post Meta\" _wp_attached_file puede modificarse a una cadena arbitraria, como uno que termina en una subcadena \".jpg?file.php\". Un atacante con privilegios de autor puede ejecutar código arbitrario subiendo una imagen manipulada que contiene código PHP en los metadatos Exif. Su explotación exitosa puede aprovechar el CVE-2019-8943."
    }
  ],
  "lastModified": "2026-06-17T02:42:49.427",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CEEA870E-2BB4-4720-A3D9-1FFBA5596D94",
              "versionEndExcluding": "4.9.9"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6388DAB8-F3FA-4200-9F3B-95C313A60D6C"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:beta1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "94A6DBFD-C0C6-4DE4-87C2-172B775D2D79"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:beta2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "28795DB4-793A-45FE-9AC3-8DA0744EC49A"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:beta3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "31C648F2-8168-499C-ABEA-80257CA6602F"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:beta4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8491A84A-412E-48EA-BB3E-6B8DE391C0B7"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:beta5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "226A4045-672A-4D89-9A81-695EA1AD2567"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2D05F1BB-F066-4D9D-A270-106DABE83E58"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ACDBA025-8E1C-4712-AA3A-9061F59517CC"
            },
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:5.0:rc3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AFFF7BFC-9D10-4569-965A-9640C722EEBC"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}