CVE-2026-15652 in Easy Accordion Plugin
Summary
by MITRE • 07/16/2026
The Easy Accordion – AI-Powered FAQ & Accordion Blocks, Product FAQ plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'align' Block Attribute in all versions up to, and including, 3.1.6 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.
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Analysis
by VulDB Data Team • 07/16/2026
The Easy Accordion plugin for WordPress represents a widely used tool for creating interactive FAQ sections and accordion blocks on websites. This particular vulnerability affects versions up to and including 3.1.6, exposing installations to significant security risks through a stored cross-site scripting flaw. The vulnerability specifically targets the 'align' block attribute within the plugin's functionality, demonstrating how seemingly minor input handling issues can create substantial attack vectors.
The technical flaw stems from inadequate input sanitization and output escaping mechanisms within the plugin's codebase. When authenticated attackers with contributor-level permissions or higher submit content containing malicious scripts through the align attribute parameter, the system fails to properly validate or sanitize this input before storing it in the database. This stored malicious content then executes whenever any user accesses pages containing the injected scripts, creating a persistent cross-site scripting vulnerability that can affect multiple users over time.
From an operational perspective, this vulnerability presents a serious threat to WordPress site security as it requires only contributor-level access to exploit, which is often granted to trusted users or editors within many organizations. The stored nature of the XSS attack means that malicious scripts remain active until manually removed from the database, potentially allowing attackers to steal user sessions, deface websites, redirect visitors to malicious sites, or harvest sensitive information from authenticated users. This vulnerability undermines the integrity of the WordPress content management system and can lead to broader compromise of affected websites.
The vulnerability aligns with CWE-79 which classifies cross-site scripting as a critical security weakness in web applications, specifically addressing insufficient input validation and output escaping. From an ATT&CK framework perspective, this represents a technique classified under T1566 - Phishing and T1059 - Command and Scripting Interpreter, as attackers can leverage the stored XSS to deliver malicious payloads and execute arbitrary code within user browsers. The impact extends beyond simple script execution to potentially enable more sophisticated attacks including credential theft, session hijacking, and data exfiltration.
Mitigation strategies should begin with immediate plugin updates to versions that address this vulnerability, as developers typically release patches for such security issues. Organizations should also implement additional security measures including role-based access controls to limit contributor privileges where possible, regular security audits of installed plugins, and monitoring for unauthorized content modifications. Implementing Content Security Policy headers can provide additional protection against script execution, while regular backups ensure rapid recovery if compromise occurs. Network segmentation and web application firewalls may also help detect and prevent exploitation attempts targeting this specific vulnerability vector.