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CVE-2023-4772

MEDIUM 5.4 CVSS 3.1
Published
September 7, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • satollo Newsletter – Send awesome emails from WordPress — Up to and including 7.8.9
  • thenewsletterplugin newsletter — Up to and including 7.8.9

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/newsletter/tags/7.8.9/subscription/subscription.php#L1653 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2955097/newsletter#file21 Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/87da5300-1add-44fc-a3e0-e8912f946c84?source=cve Patch, Third Party Advisory
  • nvd.nist.gov Official NVD record