๐Ÿ” CVE Alert

CVE-2023-6527

MEDIUM 6.1

Email Subscription Popup <= 1.2.18 - Reflected Cross-Site Scripting

CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th

The Email Subscription Popup plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the HTTP_REFERER header in all versions up to, and including, 1.2.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CWE CWE-79
Vendor nik00726
Product email subscription popup
Published Dec 6, 2023
Last Updated Apr 8, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

nik00726 / Email Subscription Popup
0 โ‰ค 1.2.18

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/5f84814e-f7b7-4228-b331-63027a0770af?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/email-subscribe/tags/1.2.19/wp-email-subscription.php?rev=3005188#L2125

Credits

0x9567b