CVE-2026-39521 - Vulnerability Details - OpenCVE

Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.This issue affects Nelio Content: from n/a through <= 4.3.1.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Nelio Software	Nelio Content
Wordpress	Wordpress

No data.

No data.

References

Link	Providers
https://patchstack.com/database/Wordpress/Plugin/nelio-content/vulnerability/wordpress-nelio-content-plugin-4-3-1-server-side-request-forgery-ssrf-vulnerability?_s_id=cve

History

Mon, 13 Apr 2026 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 08 Apr 2026 19:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Nelio Software Nelio Software nelio Content Wordpress Wordpress wordpress
Vendors & Products		Nelio Software Nelio Software nelio Content Wordpress Wordpress wordpress

Wed, 08 Apr 2026 08:45:00 +0000

Type	Values Removed	Values Added
Description		Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.This issue affects Nelio Content: from n/a through <= 4.3.1.
Title		WordPress Nelio Content plugin <= 4.3.1 - Server Side Request Forgery (SSRF) vulnerability
Weaknesses		CWE-918
References		https://patchstack.com/database/Wordpress/Plugin/nelio-content/vulnerability/wordpress-nelio-content-plugin-4-3-1-server-side-request-forgery-ssrf-vulnerability?_s_id=cve

MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-04-08T08:30:16.011Z

Updated: 2026-04-13T15:29:06.400Z

Reserved: 2026-04-07T10:48:03.414Z

Link: CVE-2026-39521

Vulnrichment

Updated: 2026-04-13T15:28:54.560Z

NVD

Status : Deferred

Published: 2026-04-08T09:16:25.793

Modified: 2026-04-24T18:08:35.440

Link: CVE-2026-39521

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-39521", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "state": "PUBLISHED", "assignerShortName": "Patchstack", "dateReserved": "2026-04-07T10:48:03.414Z", "datePublished": "2026-04-08T08:30:16.011Z", "dateUpdated": "2026-04-13T15:29:06.400Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "packageName": "nelio-content", "product": "Nelio Content", "vendor": "Nelio Software", "versions": [{"changes": [{"at": "4.3.2", "status": "unaffected"}], "lessThanOrEqual": "4.3.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Steven Julian | Patchstack Bug Bounty Program"}], "datePublic": "2026-04-08T10:28:59.829Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.<p>This issue affects Nelio Content: from n/a through <= 4.3.1.</p>"}], "value": "Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.This issue affects Nelio Content: from n/a through <= 4.3.1."}], "impacts": [{"capecId": "CAPEC-664", "descriptions": [{"lang": "en", "value": "Server Side Request Forgery"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "description": "Server-Side Request Forgery (SSRF)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-04-08T08:30:16.011Z"}, "references": [{"tags": ["vdb-entry"], "url": "https://patchstack.com/database/Wordpress/Plugin/nelio-content/vulnerability/wordpress-nelio-content-plugin-4-3-1-server-side-request-forgery-ssrf-vulnerability?_s_id=cve"}], "title": "WordPress Nelio Content plugin <= 4.3.1 - Server Side Request Forgery (SSRF) vulnerability"}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-04-13T15:29:02.586857Z", "id": "CVE-2026-39521", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-13T15:29:06.400Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-39521", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-13T15:29:02.586857Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-13T15:28:54.560Z"}}], "cna": {"title": "WordPress Nelio Content plugin <= 4.3.1 - Server Side Request Forgery (SSRF) vulnerability", "credits": [{"lang": "en", "type": "finder", "value": "Steven Julian | Patchstack Bug Bounty Program"}], "impacts": [{"capecId": "CAPEC-664", "descriptions": [{"lang": "en", "value": "Server Side Request Forgery"}]}], "affected": [{"vendor": "Nelio Software", "product": "Nelio Content", "versions": [{"status": "affected", "changes": [{"at": "4.3.2", "status": "unaffected"}], "version": "0", "versionType": "custom", "lessThanOrEqual": "4.3.1"}], "packageName": "nelio-content", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected"}], "datePublic": "2026-04-08T10:28:59.829Z", "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/nelio-content/vulnerability/wordpress-nelio-content-plugin-4-3-1-server-side-request-forgery-ssrf-vulnerability?_s_id=cve", "tags": ["vdb-entry"]}], "descriptions": [{"lang": "en", "value": "Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.This issue affects Nelio Content: from n/a through <= 4.3.1.", "supportingMedia": [{"type": "text/html", "value": "Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.<p>This issue affects Nelio Content: from n/a through <= 4.3.1.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-918", "description": "Server-Side Request Forgery (SSRF)"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-04-08T08:30:16.011Z"}}}, "cveMetadata": {"cveId": "CVE-2026-39521", "state": "PUBLISHED", "dateUpdated": "2026-04-13T15:29:06.400Z", "dateReserved": "2026-04-07T10:48:03.414Z", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "datePublished": "2026-04-08T08:30:16.011Z", "assignerShortName": "Patchstack"}, "dataVersion": "5.2"}