CVE-2026-6565 in Style Kits for Elementor Plugin
Summary
by MITRE • 05/27/2026
The Style Kits – Advanced Theme Styles for Elementor, Elementor Kits & Elementor Patterns plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '/wp-json/agwp/v1/tokens/save' endpoint kit title parameter in versions up to, and including, 2.5.0 due to insufficient input sanitization and output escaping in an admin attribute context. 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 • 05/29/2026
The vulnerability identified in the Style Kits plugin for WordPress represents a critical stored cross-site scripting flaw that exploits the administrative token saving endpoint. This issue affects versions up to and including 2.5.0 and stems from inadequate input sanitization and output escaping mechanisms within the admin attribute context. The vulnerability specifically targets the kit title parameter in the /wp-json/agwp/v1/tokens/save endpoint, creating a persistent XSS vector that can be exploited by authenticated attackers possessing contributor-level privileges or higher. The flaw allows malicious actors to inject arbitrary web scripts that execute whenever any user accesses a page containing the injected content, making it particularly dangerous in multi-user environments where administrators might inadvertently view compromised pages.
The technical implementation of this vulnerability demonstrates a failure in proper security controls that should have been implemented at multiple layers of the application. The insufficient input sanitization means that user-supplied data containing malicious script tags is not properly filtered or validated before being stored in the database. Additionally, the lack of appropriate output escaping in the admin context means that when this stored data is later rendered in administrative interfaces, the malicious scripts are executed in the context of the victim's browser session. This type of vulnerability falls under CWE-79 - Cross-Site Scripting and aligns with ATT&CK technique T1566.001 - Phishing via Social Media, as it enables attackers to create malicious content that can be executed in the context of legitimate administrative sessions.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the ability to escalate privileges and potentially compromise entire WordPress installations. An attacker with contributor-level access can craft malicious kit titles that, when viewed by administrators, execute scripts that could steal session cookies, redirect users to malicious sites, or perform unauthorized actions within the WordPress administration interface. This vulnerability enables a range of malicious activities including but not limited to session hijacking, data exfiltration, and privilege escalation. The persistent nature of stored XSS means that once the malicious payload is injected, it remains active until manually removed from the database, providing attackers with sustained access to compromised systems.
Mitigation strategies for this vulnerability should include immediate patching to versions that address the input sanitization and output escaping deficiencies. Administrators should implement strict input validation for all user-supplied data, particularly in administrative contexts where such data is later rendered. The implementation of Content Security Policy headers can provide additional protection against script execution, while regular security audits should be conducted to identify similar vulnerabilities in other plugins and themes. Access control measures should be reviewed to ensure that only trusted users have contributor-level privileges, and monitoring should be implemented to detect unusual activity patterns that might indicate exploitation attempts. Organizations should also consider implementing web application firewalls and regular penetration testing to identify and remediate similar vulnerabilities before they can be exploited in real-world scenarios.