The Shariff Wrapper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headline' parameter in the [shariff] shortcode in all versions up to, and including, 4.6.20 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. The vulnerability occurs because the plugin uses a custom wp_kses implementation with permissive allowed HTML tags, and then performs a str_replace operation that injects HTML after sanitization, allowing event handlers to be introduced through the %total placeholder in the style attribute.
History

Thu, 28 May 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared 3uu
3uu shariff Wrapper
Wordpress
Wordpress wordpress
Vendors & Products 3uu
3uu shariff Wrapper
Wordpress
Wordpress wordpress

Thu, 28 May 2026 08:45:00 +0000

Type Values Removed Values Added
Description The Shariff Wrapper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headline' parameter in the [shariff] shortcode in all versions up to, and including, 4.6.20 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. The vulnerability occurs because the plugin uses a custom wp_kses implementation with permissive allowed HTML tags, and then performs a str_replace operation that injects HTML after sanitization, allowing event handlers to be introduced through the %total placeholder in the style attribute.
Title Shariff Wrapper <= 4.6.20 - Authenticated (Contributor+) Cross-Site Scripting
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-05-28T08:27:38.853Z

Reserved: 2026-03-17T14:11:01.203Z

Link: CVE-2026-4334

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-28T09:16:45.360

Modified: 2026-05-28T09:16:45.360

Link: CVE-2026-4334

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T09:30:05Z