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    2 vulnerabilities found for WooCommerce Subscriptions by Unknown

    CVE-2026-18391 (GCVE-0-2026-18391)

    Vulnerability from nvd – Published: 2026-08-12 06:00 – Updated: 2026-08-12 19:40
    VLAI
    Title
    WooCommerce Subscriptions < 9.1.0 - Unauthenticated RCE via PHP Object Injection
    Summary
    The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-12 19:39 UTC
    CWE
    Assigner
    References
    URL Tags
    https://wpscan.com/vulnerability/191f76cf-e5bd-4a… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown WooCommerce Subscriptions Affected: 4.7.0 , < 9.1.0 (semver)
    		Create a notification for this product.
    Credits
    Vasily Belolapotkov Vlad Olaru WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-18391",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-12T19:39:49.283713Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-434",
                "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-12T19:40:07.711Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WooCommerce Subscriptions",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "9.1.0",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Vasily Belolapotkov"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Vlad Olaru"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-12T06:00:17.487Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
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          "url": "https://wpscan.com/vulnerability/191f76cf-e5bd-4a37-ac1c-9187cea2aa27/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "WooCommerce Subscriptions \u003c 9.1.0 - Unauthenticated RCE via PHP Object Injection",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-18391",
    "datePublished": "2026-08-12T06:00:17.487Z",
    "dateReserved": "2026-07-30T14:11:55.443Z",
    "dateUpdated": "2026-08-12T19:40:07.711Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-18391 (GCVE-0-2026-18391)

    Vulnerability from cvelistv5 – Published: 2026-08-12 06:00 – Updated: 2026-08-12 19:40
    VLAI
    Title
    WooCommerce Subscriptions < 9.1.0 - Unauthenticated RCE via PHP Object Injection
    Summary
    The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies.
    Severity
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-12 19:39 UTC
    CWE
    Assigner
    References
    URL Tags
    https://wpscan.com/vulnerability/191f76cf-e5bd-4a… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown WooCommerce Subscriptions Affected: 4.7.0 , < 9.1.0 (semver)
    		Create a notification for this product.
    Credits
    Vasily Belolapotkov Vlad Olaru WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-18391",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-12T19:39:49.283713Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-434",
                "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-12T19:40:07.711Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WooCommerce Subscriptions",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "9.1.0",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Vasily Belolapotkov"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Vlad Olaru"
        },
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          "type": "coordinator",
          "value": "WPScan"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-12T06:00:17.487Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
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            "vdb-entry",
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        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "WooCommerce Subscriptions \u003c 9.1.0 - Unauthenticated RCE via PHP Object Injection",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
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    "dateReserved": "2026-07-30T14:11:55.443Z",
    "dateUpdated": "2026-08-12T19:40:07.711Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}