Vulnerability-Lookup

GHSA-XGJ6-M977-PGHJ

Vulnerability from github – Published: 2026-06-24 09:30 – Updated: 2026-06-24 09:30

Details

The Welcome Software Publishing plugin for WordPress is vulnerable to Arbitrary Options Update in all versions up to and including 0.0.31. This is due to a missing capability check in the nc_setOption() function, which is exposed via the nc.setOption XML-RPC method. The function authenticates the user via $wp_xmlrpc_server->login() (verifying credentials are valid) but does not perform any authorization check such as current_user_can('manage_options'). This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary WordPress options via XML-RPC requests. This can be leveraged to change the default_role option to 'administrator' and then register a new administrator account, achieving full privilege escalation and site takeover.

Severity

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-4297"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T07:16:27Z",
    "severity": "HIGH"
  },
  "details": "The Welcome Software Publishing plugin for WordPress is vulnerable to Arbitrary Options Update in all versions up to and including 0.0.31. This is due to a missing capability check in the nc_setOption() function, which is exposed via the nc.setOption XML-RPC method. The function authenticates the user via $wp_xmlrpc_server-\u003elogin() (verifying credentials are valid) but does not perform any authorization check such as current_user_can(\u0027manage_options\u0027). This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary WordPress options via XML-RPC requests. This can be leveraged to change the default_role option to \u0027administrator\u0027 and then register a new administrator account, achieving full privilege escalation and site takeover.",
  "id": "GHSA-xgj6-m977-pghj",
  "modified": "2026-06-24T09:30:46Z",
  "published": "2026-06-24T09:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4297"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L264"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L265"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L272"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L44"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L264"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L265"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L272"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L44"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/47e53fd3-4e3f-433a-8e70-3a58c864184a?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-4297 (GCVE-0-2026-4297)

Vulnerability from cvelistv5 – Published: 2026-06-24 05:33 – Updated: 2026-06-24 14:50

Title

Welcome Software Publishing <= 0.0.31 - Authenticated (Subscriber+) Arbitrary Options Update to Privilege Escalation via 'nc.setOption' XML-RPC Method

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/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 2026-06-24 14:49 UTC

CWE

CWE-862 - Missing Authorization

Assigner

Wordfence mitre root

References

9 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/newscr…
https://plugins.trac.wordpress.org/browser/newscr…
https://plugins.trac.wordpress.org/browser/newscr…
https://plugins.trac.wordpress.org/browser/newscr…
https://plugins.trac.wordpress.org/browser/newscr…
https://plugins.trac.wordpress.org/browser/newscr…
https://plugins.trac.wordpress.org/browser/newscr…
https://plugins.trac.wordpress.org/browser/newscr…

Impacted products

1 product

Vendor	Product	Version
newscred	Welcome Software Publishing	Affected: 0 , ≤ 0.0.31 (semver)

Credits

Nabil Irawan

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4297",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-24T14:49:59.958116Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-24T14:50:13.376Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Welcome Software Publishing",
          "vendor": "newscred",
          "versions": [
            {
              "lessThanOrEqual": "0.0.31",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Nabil Irawan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Welcome Software Publishing plugin for WordPress is vulnerable to Arbitrary Options Update in all versions up to and including 0.0.31. This is due to a missing capability check in the nc_setOption() function, which is exposed via the nc.setOption XML-RPC method. The function authenticates the user via $wp_xmlrpc_server-\u003elogin() (verifying credentials are valid) but does not perform any authorization check such as current_user_can(\u0027manage_options\u0027). This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary WordPress options via XML-RPC requests. This can be leveraged to change the default_role option to \u0027administrator\u0027 and then register a new administrator account, achieving full privilege escalation and site takeover."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T05:33:24.530Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/47e53fd3-4e3f-433a-8e70-3a58c864184a?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L272"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L272"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L264"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L264"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L265"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L265"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L44"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L44"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-06-23T16:42:18.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Welcome Software Publishing \u003c= 0.0.31 - Authenticated (Subscriber+) Arbitrary Options Update to Privilege Escalation via \u0027nc.setOption\u0027 XML-RPC Method"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-4297",
    "datePublished": "2026-06-24T05:33:24.530Z",
    "dateReserved": "2026-03-16T18:58:52.144Z",
    "dateUpdated": "2026-06-24T14:50:13.376Z",
    "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.

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.