CVE-2026-94505 (GCVE-0-2026-94505)
Vulnerability from cvelistv5 – Published: 2026-10-03 06:38 – Updated: 2026-10-03 15:42
VLAI
EPSS
VEX
Title
Nelio Content <= 4.5.0 - Missing Authorization to Authenticated (Contributor+) Arbitrary Reusable Message Deletion via 'id' Parameter
Summary
The Nelio Content – Editorial Calendar & Social Media Auto-Posting plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.5.0 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to permanently delete any reusable social message (nc_reusable_social post), including those authored by administrators or other privileged users.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-03 15:24 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| nelio | Nelio Content – Editorial Calendar & Social Media Auto-Posting |
Affected:
0 , ≤ 4.5.0
(semver)
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-94505",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-03T15:24:39.732434Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-03T15:42:41.610Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Nelio Content \u2013 Editorial Calendar \u0026 Social Media Auto-Posting",
"vendor": "nelio",
"versions": [
{
"lessThanOrEqual": "4.5.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Wordfence PRISM"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Nelio Content \u2013 Editorial Calendar \u0026 Social Media Auto-Posting plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.5.0 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to permanently delete any reusable social message (nc_reusable_social post), including those authored by administrators or other privileged users."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-03T06:38:24.479Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/828050ce-4775-4256-8dcf-2cdb96d5ec4e?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/post-types/reusable-messages/class-nelio-content-reusable-message-rest-controller.php#L68"
},
{
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/post-types/reusable-messages/class-nelio-content-reusable-message-rest-controller.php#L169"
},
{
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/utils/functions/helpers.php#L80"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3724505/nelio-content/tags/4.5.1"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-09-25T06:09:21.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-10-02T18:35:30.000Z",
"value": "Disclosed"
}
],
"title": "Nelio Content \u003c= 4.5.0 - Missing Authorization to Authenticated (Contributor+) Arbitrary Reusable Message Deletion via \u0027id\u0027 Parameter"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-94505",
"datePublished": "2026-10-03T06:38:24.479Z",
"dateReserved": "2026-09-21T18:23:48.273Z",
"dateUpdated": "2026-10-03T15:42:41.610Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-94505",
"date": "2026-10-22",
"epss": "0.0029",
"percentile": "0.20468"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Nelio Content \u2013 Editorial Calendar \u0026 Social Media Auto-Posting",
"vendor": "nelio",
"versions": [
{
"lessThanOrEqual": "4.5.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Nelio Content \u2013 Editorial Calendar \u0026 Social Media Auto-Posting plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.5.0 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to permanently delete any reusable social message (nc_reusable_social post), including those authored by administrators or other privileged users."
}
],
"id": "CVE-2026-94505",
"lastModified": "2026-10-06T15:04:52.637",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2,
"source": "security@wordfence.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-94505",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-03T15:24:39.732434Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-10-03T07:16:49.033",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/post-types/reusable-messages/class-nelio-content-reusable-message-rest-controller.php#L169"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/post-types/reusable-messages/class-nelio-content-reusable-message-rest-controller.php#L68"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/utils/functions/helpers.php#L80"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/changeset/3724505/nelio-content/tags/4.5.1"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/828050ce-4775-4256-8dcf-2cdb96d5ec4e?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-2026-94505",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-03T15:24:39.732434Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-03T15:38:41.945Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Nelio Content \u2013 Editorial Calendar \u0026 Social Media Auto-Posting",
"vendor": "nelio",
"versions": [
{
"lessThanOrEqual": "4.5.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Wordfence PRISM"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Nelio Content \u2013 Editorial Calendar \u0026 Social Media Auto-Posting plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.5.0 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to permanently delete any reusable social message (nc_reusable_social post), including those authored by administrators or other privileged users."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-03T06:38:24.479Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/828050ce-4775-4256-8dcf-2cdb96d5ec4e?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/post-types/reusable-messages/class-nelio-content-reusable-message-rest-controller.php#L68"
},
{
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/post-types/reusable-messages/class-nelio-content-reusable-message-rest-controller.php#L169"
},
{
"url": "https://plugins.trac.wordpress.org/browser/nelio-content/tags/4.5.0/includes/utils/functions/helpers.php#L80"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3724505/nelio-content/tags/4.5.1"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-09-25T06:09:21.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-10-02T18:35:30.000Z",
"value": "Disclosed"
}
],
"title": "Nelio Content \u003c= 4.5.0 - Missing Authorization to Authenticated (Contributor+) Arbitrary Reusable Message Deletion via \u0027id\u0027 Parameter"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-94505",
"datePublished": "2026-10-03T06:38:24.479Z",
"dateReserved": "2026-09-21T18:23:48.273Z",
"dateUpdated": "2026-10-03T15:42:41.610Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
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.