CVE-2025-49076: Plus Addons for Elementor Stored XSS Flaw

CVE-2025-49076 Overview

CVE-2025-49076 is a stored Cross-Site Scripting (XSS) vulnerability affecting the POSIMYTH The Plus Addons for Elementor Page Builder Lite WordPress plugin. The flaw stems from improper neutralization of user input during web page generation [CWE-79]. An authenticated attacker with low privileges can inject persistent JavaScript payloads that execute in the browsers of users who view the affected pages. The issue affects all plugin versions up to and including 6.2.7.

Critical Impact
Authenticated contributors can store malicious scripts that execute against site visitors and administrators, enabling session hijacking, credential theft, or backend actions performed on behalf of the victim.

Affected Products

POSIMYTH The Plus Addons for Elementor Page Builder Lite versions up to and including 6.2.7
WordPress sites running the the-plus-addons-for-elementor-page-builder plugin
Any Elementor-based site relying on the Lite edition of this addon pack

Discovery Timeline

2025-06-06 - CVE-2025-49076 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-49076

Vulnerability Analysis

The vulnerability is a stored XSS flaw in the POSIMYTH Plus Addons for Elementor Lite plugin. Input supplied through one or more plugin widgets or settings is written to persistent storage without adequate sanitization or output encoding. When the affected content is rendered, the browser interprets the attacker-controlled payload as executable JavaScript. Because the payload persists, every subsequent visitor to the affected page becomes a target.

Exploitation requires an authenticated session with low-level privileges and user interaction to view the page containing the payload. The scope is changed, meaning the injected script executes in the security context of the WordPress site rather than the attacker's. Successful exploitation can lead to account takeover, defacement, redirection to attacker-controlled infrastructure, or delivery of secondary payloads.

Root Cause

The root cause is missing or insufficient input validation and output encoding in widget or setting fields exposed by the plugin. Attacker-supplied HTML and JavaScript are stored in the database and later echoed into the DOM without escaping via functions such as esc_html(), esc_attr(), or wp_kses(). This maps directly to [CWE-79] Improper Neutralization of Input During Web Page Generation.

Attack Vector

The attack is remote and network-based. An authenticated user with editorial permissions crafts a payload inside a vulnerable plugin field. Once saved, the payload persists on the affected page. Any authenticated administrator or unauthenticated visitor rendering that page triggers script execution in their browser. Full technical details are available in the Patchstack XSS Vulnerability Report.

No public proof-of-concept exploit or verified code samples are available at this time.

Detection Methods for CVE-2025-49076

Indicators of Compromise

Unexpected <script>, <iframe>, or on* event handler attributes in post, page, or plugin option content within the WordPress database.
Outbound requests from browsers of authenticated administrators to unfamiliar third-party domains after visiting Elementor-rendered pages.
New or unexpected administrator accounts created shortly after page edits by low-privileged users.
Modifications to plugin widget settings by contributor or author accounts that do not normally publish content.

Detection Strategies

Query the wp_posts and wp_options tables for stored HTML containing script tags or JavaScript URI schemes such as javascript:.
Monitor WordPress audit logs for changes to Plus Addons widgets made by non-administrator roles.
Deploy Content Security Policy (CSP) reporting to identify blocked inline script executions on Elementor pages.
Review Web Application Firewall (WAF) logs for payloads targeting plugin-specific AJAX endpoints or admin-ajax.php actions.

Monitoring Recommendations

Enable and forward WordPress and web server access logs to a centralized analytics platform for correlation.
Alert on POST requests to plugin editor endpoints originating from low-privileged user accounts.
Track anomalous session activity, including cookie theft indicators such as concurrent sessions from disparate geolocations.
Periodically scan rendered pages with headless browsers to detect injected scripts that evade static inspection.

How to Mitigate CVE-2025-49076

Immediate Actions Required

Update the the-plus-addons-for-elementor-page-builder plugin to a version later than 6.2.7 as soon as a fixed release is available from POSIMYTH.
Audit all pages built with Plus Addons widgets for injected scripts and remove malicious content from the database.
Force password resets and terminate active sessions for all administrator and editor accounts if compromise is suspected.
Restrict which user roles can edit Elementor content and install plugin updates.

Patch Information

Refer to the Patchstack XSS Vulnerability Report for the latest patch status. Apply the vendor-supplied update through the WordPress plugin management console once available, and verify version numbers after upgrade.

Workarounds

Deactivate the Plus Addons for Elementor Lite plugin until a patched release is installed.
Deploy a WAF rule set that blocks XSS payloads targeting WordPress plugin endpoints.
Enforce a strict Content Security Policy that disallows inline scripts and untrusted external sources.
Limit contributor and author accounts to trusted personnel and require multi-factor authentication for all privileged users.

bash

# Configuration example: strict CSP header via .htaccess
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"