The Easy Accordion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'accordionTitleTag' block attribute in versions up to, and including, 3.1.8. This is due to insufficient input sanitization and output escaping in the accordion_header_renderer() function, which emits the attacker-supplied tag name using esc_attr() in an HTML tag-name context instead of tag_escape(). 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

Wed, 12 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Sat, 08 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Shapedplugin
Shapedplugin easy Accordion – Ai-powered Faq & Accordion Blocks, Product Faq
Wordpress
Wordpress wordpress
Vendors & Products Shapedplugin
Shapedplugin easy Accordion – Ai-powered Faq & Accordion Blocks, Product Faq
Wordpress
Wordpress wordpress

Sat, 08 Aug 2026 04:45:00 +0000

Type Values Removed Values Added
Description The Easy Accordion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'accordionTitleTag' block attribute in versions up to, and including, 3.1.8. This is due to insufficient input sanitization and output escaping in the accordion_header_renderer() function, which emits the attacker-supplied tag name using esc_attr() in an HTML tag-name context instead of tag_escape(). 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 Easy Accordion <= 3.1.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'accordionTitleTag' Block 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: 2026-08-08T04:25:41.799Z

Updated: 2026-08-12T15:03:01.758Z

Reserved: 2026-08-05T18:07:01.094Z

Link: CVE-2026-18988

cve-icon Vulnrichment

Updated: 2026-08-12T15:02:58.756Z

cve-icon NVD

Status : Deferred

Published: 2026-08-08T05:17:06.790

Modified: 2026-08-12T21:00:52.257

Link: CVE-2026-18988

cve-icon Redhat

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