Unauthenticated Cross Site Scripting (XSS) in Newsletter <= 9.3.3 versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Stefano Lissa Newsletter unaffected
Version Status Constraints
n/a affected ≤ 9.3.3

No data.

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress Newsletter Plugin to the latest available version (at least 9.3.4).

Workaround

No workaround given by the vendor.

References
Link Providers
https://patchstack.com/database/wordpress/plugin/newsletter/vulnerability/wordpress-newsletter-plugin-9-3-3-cross-site-scripting-xss-vulnerability?_s_id=cve cve-icon cve-icon
History

Wed, 19 Aug 2026 13:00:00 +0000

Type Values Removed Values Added
Description Unauthenticated Cross Site Scripting (XSS) in Newsletter <= 9.3.3 versions.
Title WordPress Newsletter plugin <= 9.3.3 - Cross Site Scripting (XSS) vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Patchstack

Published:

Updated: 2026-08-19T12:38:44.706Z

Reserved: 2026-07-27T14:00:08.990Z

Link: CVE-2026-66596

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-19T13:17:50.430

Modified: 2026-08-19T13:17:50.430

Link: CVE-2026-66596

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses