CVE-2026-1266
Postalicious <= 3.0.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings
- State
- Published
- Severity
- 4.4 Medium
- Published
- Jan 24, 2026
- Updated
- Apr 8, 2026
- Reserved
- Jan 20, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.4 Medium | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Postaliciousneop |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/512c9a2f-b023-4e28-8dd8-35795e68a8b3?source=cve
- https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L316
- https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L316
- https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L533
- https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L533
- https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L541
- https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L541
- https://plugins.trac.wordpress.org/browser/postalicious/trunk/wp-postalicious.php#L548
- https://plugins.trac.wordpress.org/browser/postalicious/tags/3.0.1/wp-postalicious.php#L548
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