🔐 CVE Alert

CVE-2026-1266

MEDIUM 4.4

Postalicious <= 3.0.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings

CVSS Score
4.4
EPSS Score
0.0%
EPSS Percentile
0th

The Postalicious plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

CWE CWE-79
Vendor neop
Product postalicious
Published Jan 24, 2026
Last Updated Apr 8, 2026
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CVSS v3 Breakdown

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

Affected Versions

neop / Postalicious
0 ≤ 3.0.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/512c9a2f-b023-4e28-8dd8-35795e68a8b3?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L316 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L316 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L533 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L533 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L541 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L541 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L548 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L548

Credits

Bhumividh Treloges