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1 vulnerability by newscred
CVE-2026-4297 (GCVE-0-2026-4297)
Vulnerability from cvelistv5 – Published: 2026-06-24 05:33 – Updated: 2026-06-24 14:50
VLAI
Title
Welcome Software Publishing <= 0.0.31 - Authenticated (Subscriber+) Arbitrary Options Update to Privilege Escalation via 'nc.setOption' XML-RPC Method
Summary
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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-862 - Missing Authorization
Assigner
References
9 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| newscred | Welcome Software Publishing |
Affected:
0 , ≤ 0.0.31
(semver)
|
Credits
{
"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": [
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"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"
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}
],
"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": {
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"assignerShortName": "Wordfence",
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"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"
}