CVE-2026-4297 (GCVE-0-2026-4297)
Vulnerability from cvelistv5 – Published: 2026-06-24 05:33 – Updated: 2026-06-24 14:50
VLAI
EPSS
VEX
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 14:49 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
9 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| newscred | Welcome Software Publishing |
Affected:
0 , ≤ 0.0.31
(semver)
|
guessed |
{
"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",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-4297",
"date": "2026-09-18",
"epss": "0.00671",
"percentile": "0.50525"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Welcome Software Publishing",
"vendor": "newscred",
"versions": [
{
"lessThanOrEqual": "0.0.31",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"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."
}
],
"id": "CVE-2026-4297",
"lastModified": "2026-06-25T13:26:11.740",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "security@wordfence.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-4297",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-24T14:49:59.958116Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-06-24T07:16:27.310",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L264"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L265"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L272"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/tags/0.0.31/newscred.php#L44"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L264"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L265"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L272"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/newscred-publishing/trunk/newscred.php#L44"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/47e53fd3-4e3f-433a-8e70-3a58c864184a?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-862"
}
],
"source": "security@wordfence.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"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": "2026-06-24T14:50:09.677Z",
"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"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
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.
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.
Loading…
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.
Loading…