The Ad Short plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ad' shortcode's 'client' attribute in all versions up to and including 2.0.1. This is due to insufficient input sanitization and output escaping on the 'client' shortcode attribute. The ad_func() shortcode handler at line 71 accepts a 'client' attribute via shortcode_atts() and directly concatenates it into a double-quoted HTML attribute (data-ad-client) at line 130 without applying esc_attr() or any other sanitization. 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.

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History

Tue, 24 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 23 Mar 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Nocaredev
Nocaredev ad Short
Wordpress
Wordpress wordpress
Vendors & Products Nocaredev
Nocaredev ad Short
Wordpress
Wordpress wordpress

Sat, 21 Mar 2026 05:30:00 +0000

Type Values Removed Values Added
Description The Ad Short plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ad' shortcode's 'client' attribute in all versions up to and including 2.0.1. This is due to insufficient input sanitization and output escaping on the 'client' shortcode attribute. The ad_func() shortcode handler at line 71 accepts a 'client' attribute via shortcode_atts() and directly concatenates it into a double-quoted HTML attribute (data-ad-client) at line 130 without applying esc_attr() or any other sanitization. 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.
Title Ad Short <= 2.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'client' Shortcode Attribute
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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-03-24T13:46:48.188Z

Reserved: 2026-03-12T19:36:12.454Z

Link: CVE-2026-4067

cve-icon Vulnrichment

Updated: 2026-03-24T13:46:43.670Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-21T04:17:40.037

Modified: 2026-03-23T14:32:02.800

Link: CVE-2026-4067

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-23T09:50:52Z

Weaknesses