The Serious Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'theme' Shortcode Attribute in all versions up to, and including, 1.4.0 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.
History

Mon, 17 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Sun, 16 Aug 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Cryoutcreations
Cryoutcreations serious Slider
Wordpress
Wordpress wordpress
Vendors & Products Cryoutcreations
Cryoutcreations serious Slider
Wordpress
Wordpress wordpress

Sun, 16 Aug 2026 04:45:00 +0000

Type Values Removed Values Added
Description The Serious Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'theme' Shortcode Attribute in all versions up to, and including, 1.4.0 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.
Title Serious Slider <= 1.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'theme' 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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-08-16T04:24:56.120Z

Updated: 2026-08-17T16:06:09.900Z

Reserved: 2026-07-14T13:31:09.062Z

Link: CVE-2026-15726

cve-icon Vulnrichment

Updated: 2026-08-17T14:14:03.452Z

cve-icon NVD

Status : Deferred

Published: 2026-08-16T05:16:47.270

Modified: 2026-08-20T12:48:10.287

Link: CVE-2026-15726

cve-icon Redhat

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