CVE-2026-57752: iNET Webkit SQL Injection Vulnerability

CVE-2026-57752 Overview

CVE-2026-57752 is a SQL injection vulnerability affecting the iNET Webkit WordPress plugin version 1.2.4. The flaw allows authenticated users with Contributor-level privileges to inject arbitrary SQL statements into database queries. Successful exploitation can expose sensitive database contents and impact application availability. The vulnerability is classified under [CWE-89], Improper Neutralization of Special Elements used in an SQL Command.

Critical Impact
Authenticated contributors can execute crafted SQL queries against the WordPress database, leading to confidentiality loss and partial availability impact across the site.

Affected Products

iNET Webkit WordPress plugin version 1.2.4
WordPress installations using vulnerable versions of the iNET Webkit plugin
Sites permitting Contributor-level user registration with the plugin enabled

Discovery Timeline

2026-07-02 - CVE-2026-57752 published to the National Vulnerability Database
2026-07-02 - Last updated in NVD database

Technical Details for CVE-2026-57752

Vulnerability Analysis

The iNET Webkit plugin fails to properly sanitize user-supplied input before incorporating it into SQL queries. Authenticated users with Contributor privileges can supply crafted parameters that alter query logic. The scope change indicated by the CVSS vector signals that the impact extends beyond the plugin's own security context to the underlying WordPress database. Contributor accounts are commonly granted on multi-author blogs, expanding the realistic attacker population.

The vulnerability primarily affects data confidentiality by exposing arbitrary database records, including user credentials and session tokens. Availability is also affected because attackers can issue expensive or destructive queries that degrade site responsiveness. Integrity is rated as none in the CVSS vector, indicating the vector does not directly enable persistent data modification through this specific issue.

Root Cause

The root cause is missing parameterization and input neutralization in plugin code paths that build SQL statements from request parameters. WordPress provides $wpdb->prepare() for safe query construction, but the affected code paths concatenate untrusted input into query strings. This is a classic [CWE-89] pattern where developer-controlled query fragments merge with attacker-controlled values.

Attack Vector

An attacker first obtains a Contributor account, either through self-registration on open sites or by compromising an existing low-privilege user. The attacker then submits a request to a vulnerable plugin endpoint containing malicious SQL fragments in a query parameter. The unsanitized value is concatenated into the backend SQL query and executed against the WordPress database, returning attacker-selected data. Refer to the Patchstack SQL Injection Vulnerability Report for advisory details.

No verified public exploitation code is currently available for this issue.

Detection Methods for CVE-2026-57752

Indicators of Compromise

Unexpected SQL syntax such as UNION SELECT, SLEEP(, INFORMATION_SCHEMA, or comment sequences (--, /*) in WordPress access logs targeting iNET Webkit endpoints
Anomalous query volume or long-running queries originating from wp_options or plugin-specific tables
Contributor accounts issuing rapid, parameter-heavy POST or GET requests to plugin routes
Web application firewall alerts flagging SQL injection payloads on plugin URLs

Detection Strategies

Enable WordPress debug logging and inspect the MySQL slow query log for statements containing injection primitives from plugin URLs
Deploy WAF rules that inspect requests to iNET Webkit endpoints for tautologies, stacked queries, and time-based payloads
Correlate Contributor authentication events with subsequent database error responses to identify probing behavior

Monitoring Recommendations

Forward WordPress, PHP, and database logs to a centralized analytics platform for cross-source correlation
Alert on newly created Contributor accounts that immediately interact with plugin endpoints
Track outbound response sizes from plugin endpoints to identify bulk data exfiltration through injected UNION queries

How to Mitigate CVE-2026-57752

Immediate Actions Required

Upgrade the iNET Webkit plugin to a version newer than 1.2.4 once the vendor publishes a fixed release
Audit existing Contributor accounts and revoke unused or unrecognized users
Temporarily disable the iNET Webkit plugin if a patched version is not yet available and the plugin is not business-critical
Rotate database credentials and WordPress secret keys if suspicious activity is identified in logs

Patch Information

Consult the Patchstack SQL Injection Vulnerability Report for the latest patch status and vendor guidance. At the time of publication, version 1.2.4 is the affected release referenced in the advisory.

Workarounds

Restrict Contributor role registration by disabling open user registration in WordPress settings
Apply a virtual patch through a web application firewall to block SQL metacharacters on iNET Webkit request parameters
Enforce least-privilege database credentials for the WordPress user, removing FILE, DROP, and ALTER privileges where not required
Place the WordPress admin area behind IP allowlisting or an authenticating reverse proxy to limit contributor session abuse

bash

# Example ModSecurity rule to block common SQLi payloads on iNET Webkit endpoints
SecRule REQUEST_URI "@contains /wp-content/plugins/inet-webkit/" \
    "id:1057752,phase:2,deny,status:403,log,\
    msg:'CVE-2026-57752 iNET Webkit SQLi attempt',\
    chain"
    SecRule ARGS "@rx (?i)(union\s+select|sleep\(|information_schema|--|/\*)" \
        "t:none,t:urlDecodeUni"