Medium severity6.4NVD Advisory· Published Sep 7, 2023· Updated Jun 17, 2026

CVE-2023-4772

Description

The Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'newsletter_form' shortcode in versions up to, and including, 7.8.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Thenewsletterplugin/Newsletter
cpe:2.3:a:thenewsletterplugin:newsletter:*:*:*:*:*:wordpress:*:*
Range: <=7.8.9
WordPress/Newsletterllm-fuzzy
Range: <=7.8.9
Package: https://wordpress.org/plugins/newsletter

Patches

Vulnerability mechanics

References

plugins.trac.wordpress.org/changeset/2955097/newsletternvdPatch
www.wordfence.com/threat-intel/vulnerabilities/id/87da5300-1add-44fc-a3e0-e8912f946c84nvdPatchThird Party Advisory
plugins.trac.wordpress.org/browser/newsletter/tags/7.8.9/subscription/subscription.phpnvdProduct

News mentions

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