CVE-2026-103355: Unlimited Elements Elementor SQLI Vulnerability

CVE-2026-103355 Overview

CVE-2026-103355 is a blind SQL injection vulnerability affecting the Unlimited Elements For Elementor (Free Widgets, Addons, Templates) WordPress plugin. The flaw stems from improper neutralization of special elements used in SQL commands [CWE-89]. Unauthenticated attackers can inject arbitrary SQL statements over the network without user interaction. The vulnerability affects all plugin versions from the initial release through 2.0.20. Successful exploitation can expose sensitive database contents and compromise WordPress site integrity.

Critical Impact
Unauthenticated attackers can execute arbitrary SQL queries against the WordPress database, exfiltrating credentials, user data, and site configuration without any authentication or user interaction.

Affected Products

Unlimited Elements For Elementor (Free Widgets, Addons, Templates) plugin for WordPress
All versions from initial release through 2.0.20
WordPress sites using the unlimited-elements-for-elementor plugin

Discovery Timeline

2026-10-04 - CVE-2026-103355 published to NVD
2026-10-06 - Last updated in NVD database

Technical Details for CVE-2026-103355

Vulnerability Analysis

The vulnerability is a blind SQL injection in the Unlimited Elements For Elementor WordPress plugin. Attacker-controlled input reaches SQL query construction without proper sanitization or parameterization. Because the injection is blind, attackers cannot see query results directly in HTTP responses. They infer data by observing boolean conditions or time-based delays introduced through crafted SQL payloads.

The network-accessible attack surface requires no authentication and no user interaction. The scope is marked as changed, meaning the vulnerability can impact resources beyond the vulnerable component itself. Confidentiality impact is high because attackers can enumerate database contents including WordPress user tables containing password hashes and session tokens.

Root Cause

The root cause is improper neutralization of special elements used in an SQL command [CWE-89]. The plugin concatenates user-supplied input directly into SQL queries rather than using parameterized statements or the WordPress $wpdb->prepare() API. Input from HTTP request parameters flows into database query execution without validation or escaping.

Attack Vector

An unauthenticated remote attacker crafts HTTP requests containing SQL metacharacters targeted at vulnerable plugin endpoints. The attacker uses blind SQLi techniques, such as boolean-based or time-based payloads, to extract data one bit at a time. Automated tools like sqlmap can accelerate exploitation against WordPress installations running vulnerable versions of the plugin.

No verified exploit code is publicly available at this time. See the Patchstack SQL Injection Vulnerability advisory for additional context.

Detection Methods for CVE-2026-103355

Indicators of Compromise

HTTP requests to WordPress endpoints containing SQL keywords such as UNION, SELECT, SLEEP(, BENCHMARK(, or AND 1=1 in query parameters or POST bodies
Elevated database query latency correlating with inbound requests to unlimited-elements-for-elementor plugin paths
Unusual wp_users or wp_options table reads originating from the WordPress process
Web server logs showing high-volume requests from a single source to plugin AJAX handlers

Detection Strategies

Deploy Web Application Firewall (WAF) rules targeting SQL injection patterns on WordPress plugin endpoints
Enable MySQL general query logging temporarily to identify malformed or suspicious queries containing attacker payloads
Monitor WordPress access logs for repeated requests to plugin endpoints with encoded SQL metacharacters (%27, %22, 0x)

Monitoring Recommendations

Alert on authentication failures and new administrator account creation events in wp_users
Track outbound data volume from WordPress hosts to detect bulk database exfiltration
Correlate web request anomalies with database query performance metrics to surface blind SQLi probing

How to Mitigate CVE-2026-103355

Immediate Actions Required

Update the Unlimited Elements For Elementor plugin to a version newer than 2.0.20 as soon as a patched release is available from the vendor
If no patch is available, deactivate and remove the plugin until a fix is released
Rotate WordPress administrator passwords and invalidate active sessions following any suspected exploitation
Review wp_users and wp_options tables for unauthorized modifications or injected administrator accounts

Patch Information

Consult the Patchstack advisory for current patch availability. The advisory covers versions through 2.0.20. Monitor the plugin's official WordPress.org page for updates beyond 2.0.20.

Workarounds

Enable a WordPress-aware WAF with SQL injection signature rules covering plugin endpoints
Restrict access to WordPress admin and plugin AJAX endpoints by source IP where feasible
Apply least-privilege MySQL user permissions, removing FILE and schema modification rights from the WordPress database account

bash

# Configuration example - temporary mitigation via WP-CLI
wp plugin deactivate unlimited-elements-for-elementor
wp plugin delete unlimited-elements-for-elementor

# Verify removal
wp plugin list --status=active | grep -i unlimited