Vulnerability-Lookup

GHSA-P65J-77G8-24JH

Vulnerability from github – Published: 2026-09-09 06:31 – Updated: 2026-09-09 06:31

Details

The WP EasyCart plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.9.3. This is due to the ec_ajax_save_page_default_options() AJAX handler iterating over every $_POST key and passing it directly into update_option() without any allowlist, while gating the handler only on 'manage_options' OR the plugin's custom 'wpec_manager' capability. The plugin's built-in 'wpec_store_manager' role holds 'wpec_manager' but not 'manage_options', and the required nonce is emitted on frontend product/category templates that render for any user with 'wpec_manager'. This makes it possible for authenticated attackers, with Store Manager-level access and above, to elevate their privileges to administrator by updating arbitrary WordPress options such as default_role='administrator' and users_can_register='1', then self-registering a new account that is assigned the administrator role.

Severity

7.2 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-17553"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T04:17:56Z",
    "severity": "HIGH"
  },
  "details": "The WP EasyCart plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.9.3. This is due to the ec_ajax_save_page_default_options() AJAX handler iterating over every $_POST key and passing it directly into update_option() without any allowlist, while gating the handler only on \u0027manage_options\u0027 OR the plugin\u0027s custom \u0027wpec_manager\u0027 capability. The plugin\u0027s built-in \u0027wpec_store_manager\u0027 role holds \u0027wpec_manager\u0027 but not \u0027manage_options\u0027, and the required nonce is emitted on frontend product/category templates that render for any user with \u0027wpec_manager\u0027. This makes it possible for authenticated attackers, with Store Manager-level access and above, to elevate their privileges to administrator by updating arbitrary WordPress options such as default_role=\u0027administrator\u0027 and users_can_register=\u00271\u0027, then self-registering a new account that is assigned the administrator role.",
  "id": "GHSA-p65j-77g8-24jh",
  "modified": "2026-09-09T06:31:37Z",
  "published": "2026-09-09T06:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17553"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/admin/inc/wp_easycart_admin.php#L209"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/design/layout/base-responsive-v3/ec_product_page.php#L415"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7103"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7107"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7110"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3681924%40wp-easycart\u0026new=3681924%40wp-easycart"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/08e62276-f004-48ca-bb00-2f81e6ac4892?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-17553 (GCVE-0-2026-17553)

Vulnerability from cvelistv5 – Published: 2026-09-09 03:28 – Updated: 2026-09-09 13:13

Title

Shopping Cart & eCommerce Store <= 5.9.3 - Authenticated (Store Manager+) Privilege Escalation to ec_ajax_save_page_default_options AJAX Action

Summary

Severity

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 13:13 UTC

CWE

CWE-269 - Improper Privilege Management

Assigner

Wordfence mitre root

References

7 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/wp-eas…
https://plugins.trac.wordpress.org/browser/wp-eas…
https://plugins.trac.wordpress.org/browser/wp-eas…
https://plugins.trac.wordpress.org/browser/wp-eas…
https://plugins.trac.wordpress.org/browser/wp-eas…
https://plugins.trac.wordpress.org/changeset?repo…

Impacted products

1 product

Vendor	Product	Version
levelfourstorefront	Shopping Cart & eCommerce Store	Affected: 0 , ≤ 5.9.3 (semver)

Credits

Wordfence PRISM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-17553",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-09T13:13:11.443033Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-09T13:13:26.504Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Shopping Cart \u0026 eCommerce Store",
          "vendor": "levelfourstorefront",
          "versions": [
            {
              "lessThanOrEqual": "5.9.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Wordfence PRISM"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The WP EasyCart plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.9.3. This is due to the ec_ajax_save_page_default_options() AJAX handler iterating over every $_POST key and passing it directly into update_option() without any allowlist, while gating the handler only on \u0027manage_options\u0027 OR the plugin\u0027s custom \u0027wpec_manager\u0027 capability. The plugin\u0027s built-in \u0027wpec_store_manager\u0027 role holds \u0027wpec_manager\u0027 but not \u0027manage_options\u0027, and the required nonce is emitted on frontend product/category templates that render for any user with \u0027wpec_manager\u0027. This makes it possible for authenticated attackers, with Store Manager-level access and above, to elevate their privileges to administrator by updating arbitrary WordPress options such as default_role=\u0027administrator\u0027 and users_can_register=\u00271\u0027, then self-registering a new account that is assigned the administrator role."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269 Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-09T03:28:45.820Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/08e62276-f004-48ca-bb00-2f81e6ac4892?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7110"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7107"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/wpeasycart.php#L7103"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/admin/inc/wp_easycart_admin.php#L209"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-easycart/tags/5.9.1/design/layout/base-responsive-v3/ec_product_page.php#L415"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3681924%40wp-easycart\u0026new=3681924%40wp-easycart"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-27T21:38:37.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-09-08T14:56:09.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Shopping Cart \u0026 eCommerce Store \u003c= 5.9.3 - Authenticated (Store Manager+) Privilege Escalation to ec_ajax_save_page_default_options AJAX Action"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-17553",
    "datePublished": "2026-09-09T03:28:45.820Z",
    "dateReserved": "2026-07-27T12:44:14.951Z",
    "dateUpdated": "2026-09-09T13:13:26.504Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-P65J-77G8-24JH

CVE-2026-17553 (GCVE-0-2026-17553)

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