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CVE-2023-4599

MEDIUM 5.4 CVSS 3.1
Published
August 30, 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 Email Encoder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'eeb_mailto' shortcode in versions up to, and including, 2.1.8 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. A partial patch was issued in version 2.1.8. The vulnerability was fully patched in 2.1.9.

Affected WordPress components

  • Email Encoder – Protect Email Addresses and Phone Numbers Plugin · email-encoder-bundle
    Confirmed match Active
    Up to and including 2.1.8
    View on WordPress.org

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

  • onlineoptimisation Email Encoder – Protect Email Addresses and Phone Numbers — Up to and including 2.1.8
  • wp-webhooks email_encoder — Up to and including 2.1.7

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/email-encoder-bundle/tags/2.1.7/core/includes/classes/class-email-encoder-bundle-run.php#L529 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2958823/email-encoder-bundle#file60 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2994384/email-encoder-bundle/trunk?contextall=1&old=2958823&old_path=%2Femail-encoder-bundle%2Ftrunk#file0
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e90f04e4-eb4c-4822-89c6-79f553987c37?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record