CVE-2025-3581

The Newsletter WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/	Exploit Third Party Advisory
https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:thenewsletterplugin:newsletter:*:*:*:*:*:wordpress:*:*

History

12 Jun 2025, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-09 06:15

Updated : 2025-06-12 16:16

NVD link : CVE-2025-3581

Mitre link : CVE-2025-3581

CVE.ORG link : CVE-2025-3581

JSON object : View

Products Affected

thenewsletterplugin

newsletter

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2025-3581", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.7}]}, "published": "2025-06-09T06:15:25.067", "references": [{"url": "https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/", "tags": ["Exploit", "Third Party Advisory"], "source": "contact@wpscan.com"}, {"url": "https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/", "tags": ["Exploit", "Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The Newsletter WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)."}, {"lang": "es", "value": "El complemento Newsletter de WordPress anterior a la versi\u00f3n 8.8.5 no valida ni escapa algunas de las opciones de su widget antes de mostrarlas nuevamente en una p\u00e1gina o publicaci\u00f3n donde est\u00e1 incrustado el bloque, lo que podr\u00eda permitir a usuarios con privilegios elevados como el administrador realizar ataques de Cross Site Scripting almacenado incluso cuando la capacidad unfiltered_html no est\u00e1 permitida (por ejemplo, en una configuraci\u00f3n de varios sitios)."}], "lastModified": "2025-06-12T16:16:47.417", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:thenewsletterplugin:newsletter:*:*:*:*:*:wordpress:*:*", "vulnerable": true, "matchCriteriaId": "B89E3C13-7B26-4DF5-945E-256DE41B5826", "versionEndExcluding": "8.8.5"}], "operator": "OR"}]}], "sourceIdentifier": "contact@wpscan.com"}