CVE-2026-57718: Unlimited Elements for Elementor XSS Flaw

CVE-2026-57718 Overview

CVE-2026-57718 is a reflected Cross-Site Scripting (XSS) vulnerability in the Unlimited Elements For Elementor (Free Widgets, Addons, Templates) WordPress plugin. The flaw stems from improper neutralization of input during web page generation [CWE-79]. All plugin versions up to and including 2.0.12 are affected. An attacker can craft a malicious URL that, when clicked by an authenticated or unauthenticated user, executes arbitrary JavaScript in the victim's browser under the site's origin. The scope-changed CVSS vector indicates the impact extends beyond the vulnerable component, allowing session hijacking, credential theft, or targeted actions performed on behalf of the victim.

Critical Impact
Attackers can execute arbitrary JavaScript in a victim's browser session, enabling session theft, credential harvesting, and administrative account takeover when a WordPress admin is targeted.

Affected Products

Unlimited Elements For Elementor (Free Widgets, Addons, Templates) WordPress plugin
All versions from n/a through <= 2.0.12
WordPress sites using the unlimited-elements-for-elementor plugin

Discovery Timeline

2026-07-13 - CVE-2026-57718 published to NVD
2026-07-13 - Last updated in NVD database

Technical Details for CVE-2026-57718

Vulnerability Analysis

The vulnerability is a reflected Cross-Site Scripting flaw classified under [CWE-79]. The plugin fails to properly sanitize or encode user-supplied input before including it in the HTTP response body. When a victim visits a specially crafted URL, the payload is reflected back into the rendered HTML and executed by the browser.

Exploitation requires user interaction, typically through a phishing link or an embedded reference on an attacker-controlled page. Because the scope is changed, injected script runs with access to resources beyond the vulnerable widget context, including WordPress session cookies and administrative interfaces.

The EPSS probability is currently 0.18%, reflecting limited observed exploit activity, but reflected XSS remains a favored technique for targeted attacks against WordPress administrators.

Root Cause

The root cause is missing output encoding in one or more request handlers within the unlimited-elements-for-elementor plugin. Parameters passed via HTTP request are echoed back into HTML responses without being processed through WordPress escaping functions such as esc_html(), esc_attr(), or wp_kses(). This permits injection of <script> tags or event-handler attributes that the browser interprets as executable code.

Attack Vector

The attack vector is network-based with low complexity and no privileges required, though it requires user interaction. A typical exploitation chain proceeds as follows:

The attacker identifies a vulnerable parameter processed by the plugin.
The attacker crafts a URL containing an XSS payload in that parameter.
The attacker delivers the URL to a victim via email, chat, or a malicious page.
The victim, while authenticated to the target WordPress site, opens the link.
The payload executes in the victim's browser under the site's origin, granting the attacker access to cookies, DOM, and any authenticated actions.

Detailed technical analysis is available in the Patchstack WordPress Plugin Vulnerability advisory.

Detection Methods for CVE-2026-57718

Indicators of Compromise

Web server access logs containing requests to plugin endpoints with URL-encoded <script>, javascript:, or onerror= sequences.
Outbound HTTP requests from browser sessions to attacker-controlled domains immediately after loading a plugin page.
Unexpected creation of WordPress administrator accounts or modification of wp_options shortly after an admin clicked an external link.
Presence of the vulnerable plugin at version <= 2.0.12 in wp-content/plugins/unlimited-elements-for-elementor/.

Detection Strategies

Deploy web application firewall rules that flag reflected script patterns in query parameters targeting unlimited-elements-for-elementor paths.
Inspect HTTP responses for reflected user input that has not been HTML-encoded.
Correlate WordPress admin activity with referring URLs containing suspicious encoded payloads.

Monitoring Recommendations

Enable verbose WordPress audit logging for user, plugin, and option changes.
Monitor browser Content Security Policy (CSP) violation reports for inline script blocks originating from plugin URLs.
Alert on anomalous session token reuse across geographies for administrator accounts.

How to Mitigate CVE-2026-57718

Immediate Actions Required

Update the Unlimited Elements For Elementor plugin to a version later than 2.0.12 as soon as a fixed release is available from the vendor.
If no patched version is available, deactivate and remove the plugin from production WordPress installations.
Force logout of all WordPress sessions and rotate administrator passwords if suspicious link-click activity is observed.

Patch Information

A fixed release addressing CVE-2026-57718 must be applied. Consult the Patchstack advisory for the Unlimited Elements For Elementor plugin for the current patched version and remediation guidance.

Workarounds

Deploy a web application firewall (WAF) with signatures that block reflected XSS payloads targeting the plugin's request parameters.
Enforce a strict Content Security Policy that disallows inline scripts and untrusted script sources.
Restrict WordPress administrator access to trusted IP ranges to reduce the exposure of privileged sessions to phishing links.
Train administrators to avoid clicking unsolicited links referencing their own WordPress site.

bash

# Example WAF rule (ModSecurity) blocking reflected script tags
# targeting the vulnerable plugin path
SecRule REQUEST_URI "@contains /wp-content/plugins/unlimited-elements-for-elementor/" \
  "chain,phase:2,deny,status:403,id:1057718,msg:'CVE-2026-57718 XSS attempt'"
  SecRule ARGS "@rx (?i)(<script|javascript:|onerror\s*=|onload\s*=)" \
    "t:urlDecodeUni,t:htmlEntityDecode"