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Security Database

CVE

CWE

Training

CVE-2023-4599

Published: Aug 30, 2023

Modified: Apr 8, 2026

PUBLISHED

CVSS v3.1

6.4

MEDIUM

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.

Vendor	Product	Versions
onlineoptimisation	Email Encoder – Protect Email Addresses and Phone Numbers	affected `0 - <= 2.1.8`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/e90f04e4-eb4c-4822-89c6-79f553987c37?source=cve

https://plugins.trac.wordpress.org/browser/email-encoder-bundle/tags/2.1.7/core/includes/classes/class-email-encoder-bundle-run.php#L529

https://plugins.trac.wordpress.org/changeset/2958823/email-encoder-bundle#file60

https://plugins.trac.wordpress.org/changeset/2994384/email-encoder-bundle/trunk?contextall=1&old=2958823&old_path=%2Femail-encoder-bundle%2Ftrunk#file0

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