Vulnerability-Lookup

GHSA-FG73-JMCF-5XR8

Vulnerability from github – Published: 2026-04-09 06:30 – Updated: 2026-04-09 06:30

Details

The MStore API plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.18.3. This is due to the update_user_profile() function in controllers/flutter-user.php processing the 'meta_data' JSON parameter without any allowlist, blocklist, or validation of meta keys. The function reads raw JSON from php://input (line 1012), decodes it (line 1013), authenticates the user via cookie validation (line 1015), and then directly iterates over the user-supplied meta_data array passing arbitrary keys and values to update_user_meta() (line 1080) with no sanitization or restrictions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify arbitrary user meta fields on their own accounts, including sensitive fields like wp_user_level (to escalate to administrator-level legacy checks), plugin-specific authorization flags (e.g., _wpuf_user_active, aiowps_account_status), and billing/profile fields with unsanitized values (potentially enabling Stored XSS in admin contexts). Note that wp_capabilities cannot be directly exploited this way because it requires a serialized array value, but wp_user_level (a simple integer) and numerous plugin-specific meta keys are exploitable.

Severity

4.3 (Medium)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-3568"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-09T04:16:59Z",
    "severity": "MODERATE"
  },
  "details": "The MStore API plugin for WordPress is vulnerable to  Insecure Direct Object Reference in all versions up to, and including, 4.18.3. This is due to the update_user_profile() function in controllers/flutter-user.php processing the \u0027meta_data\u0027 JSON parameter without any allowlist, blocklist, or validation of meta keys. The function reads raw JSON from php://input (line 1012), decodes it (line 1013), authenticates the user via cookie validation (line 1015), and then directly iterates over the user-supplied meta_data array passing arbitrary keys and values to update_user_meta() (line 1080) with no sanitization or restrictions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify arbitrary user meta fields on their own accounts, including sensitive fields like wp_user_level (to escalate to administrator-level legacy checks), plugin-specific authorization flags (e.g., _wpuf_user_active, aiowps_account_status), and billing/profile fields with unsanitized values (potentially enabling Stored XSS in admin contexts). Note that wp_capabilities cannot be directly exploited this way because it requires a serialized array value, but wp_user_level (a simple integer) and numerous plugin-specific meta keys are exploitable.",
  "id": "GHSA-fg73-jmcf-5xr8",
  "modified": "2026-04-09T06:30:27Z",
  "published": "2026-04-09T06:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3568"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/mstore-api/tags/4.18.3/controllers/flutter-user.php#L1012"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/mstore-api/tags/4.18.3/controllers/flutter-user.php#L1078"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/mstore-api/tags/4.18.3/controllers/flutter-user.php#L1080"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/mstore-api/trunk/controllers/flutter-user.php#L1012"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/mstore-api/trunk/controllers/flutter-user.php#L1078"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/mstore-api/trunk/controllers/flutter-user.php#L1080"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3494266%40mstore-api\u0026new=3494266%40mstore-api\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a77bc126-4dbd-4a26-b98c-946341d4282f?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-3568 (GCVE-0-2026-3568)

Vulnerability from cvelistv5 – Published: 2026-04-09 02:25 – Updated: 2026-04-09 12:59

Title

MStore API <= 4.18.3 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary User Meta Update

Summary

Severity

4.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-09 12:59 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

Wordfence mitre root

References

8 references

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

Impacted products

1 product

Vendor	Product	Version
inspireui	MStore API – Create Native Android & iOS Apps On The Cloud	Affected: 0 , ≤ 4.18.3 (semver)

Credits

Osvaldo Noe Gonzalez Del Rio

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-3568",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-09T12:59:03.231688Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-09T12:59:11.618Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "MStore API \u2013 Create Native Android \u0026 iOS Apps On The Cloud",
          "vendor": "inspireui",
          "versions": [
            {
              "lessThanOrEqual": "4.18.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
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          "type": "finder",
          "value": "Osvaldo Noe Gonzalez Del Rio"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The MStore API plugin for WordPress is vulnerable to  Insecure Direct Object Reference in all versions up to, and including, 4.18.3. This is due to the update_user_profile() function in controllers/flutter-user.php processing the \u0027meta_data\u0027 JSON parameter without any allowlist, blocklist, or validation of meta keys. The function reads raw JSON from php://input (line 1012), decodes it (line 1013), authenticates the user via cookie validation (line 1015), and then directly iterates over the user-supplied meta_data array passing arbitrary keys and values to update_user_meta() (line 1080) with no sanitization or restrictions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify arbitrary user meta fields on their own accounts, including sensitive fields like wp_user_level (to escalate to administrator-level legacy checks), plugin-specific authorization flags (e.g., _wpuf_user_active, aiowps_account_status), and billing/profile fields with unsanitized values (potentially enabling Stored XSS in admin contexts). Note that wp_capabilities cannot be directly exploited this way because it requires a serialized array value, but wp_user_level (a simple integer) and numerous plugin-specific meta keys are exploitable."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
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            "baseSeverity": "MEDIUM",
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          "url": "https://plugins.trac.wordpress.org/browser/mstore-api/trunk/controllers/flutter-user.php#L1078"
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        {
          "url": "https://plugins.trac.wordpress.org/browser/mstore-api/trunk/controllers/flutter-user.php#L1080"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/mstore-api/tags/4.18.3/controllers/flutter-user.php#L1080"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/mstore-api/trunk/controllers/flutter-user.php#L1012"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/mstore-api/tags/4.18.3/controllers/flutter-user.php#L1012"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/mstore-api/tags/4.18.3/controllers/flutter-user.php#L1078"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3494266%40mstore-api\u0026new=3494266%40mstore-api\u0026sfp_email=\u0026sfph_mail="
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-03-05T01:27:28.000Z",
          "value": "Vendor Notified"
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    "dateReserved": "2026-03-04T20:45:42.536Z",
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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.

Detection rules are retrieved from Rulezet.

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.

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.