CVE-2026-2840
Email Encoder – Protect Email Addresses and Phone Numbers <= 2.4.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via eeb_mailto Shortcode
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The Email Encoder – Protect Email Addresses and Phone Numbers plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'eeb_mailto' shortcode in all versions up to, and including, 2.4.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| CWE | CWE-79 |
| Vendor | onlineoptimisation |
| Product | email encoder – protect email addresses and phone numbers |
| Published | Apr 16, 2026 |
| Last Updated | Apr 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
onlineoptimisation / Email Encoder – Protect Email Addresses and Phone Numbers
0 ≤ 2.4.4
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/9987b5b4-33d8-4446-acbe-58c6cb5604df?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?old_path=/email-encoder-bundle/tags/2.4.4/src/Front/Shortcodes/MailtoShortcode.php&new_path=/email-encoder-bundle/tags/2.4.5/src/Front/Shortcodes/MailtoShortcode.php&old=3462208&new=3494181 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?old_path=/email-encoder-bundle/tags/2.4.4/src/Validate/Encoding.php&new_path=/email-encoder-bundle/tags/2.4.5/src/Validate/Encoding.php&old=3462208&new=3494181
Credits
Athiwat Tiprasaharn