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.
References6
- plugins.trac.wordpress.org/browser/easy-accordion-free/tags/3.1…
- plugins.trac.wordpress.org/browser/easy-accordion-free/tags/3.1…
- plugins.trac.wordpress.org/browser/easy-accordion-free/tags/3.1…
- plugins.trac.wordpress.org/browser/easy-accordion-free/tags/3.1…
- plugins.trac.wordpress.org/changeset/3637700/
- www.wordfence.com/threat-intel/vulnerabilities/id/6a8a5b2b-6cb0…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 29 · as of 12 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.