CVE-2026-14554 in Check & Log Email Plugin
Summary
by MITRE • 07/31/2026
The Check & Log Email WordPress plugin before 2.0.15 does not properly sanitize and escape parameters before using them in SQL queries, allowing users with administrator privileges to perform SQL injection attacks.
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Analysis
by VulDB Data Team • 07/31/2026
The Check & Log Email WordPress plugin versions prior to 2.0.15 contain a critical SQL injection vulnerability that arises from inadequate input sanitization and escaping mechanisms within its database query operations. This flaw exists in the plugin's handling of user-supplied parameters that are directly incorporated into SQL statements without proper validation or encoding. The vulnerability specifically affects administrative users who can leverage this weakness to execute malicious SQL commands against the underlying database, potentially compromising the entire WordPress installation and all associated data.
This vulnerability maps directly to CWE-89 which defines SQL injection as the insertion of malicious SQL code into query statements through untrusted input. The flaw represents a classic case of improper neutralization of special elements used in SQL commands where parameters are not adequately sanitized before being processed by the database engine. Attackers with administrator privileges can exploit this weakness by crafting malicious input that manipulates the SQL execution flow, potentially allowing them to extract sensitive information, modify database records, or even escalate their privileges within the WordPress environment.
The operational impact of this vulnerability extends beyond simple data compromise as it provides attackers with a powerful vector for persistent access and further exploitation. Successful exploitation could enable attackers to view, modify, or delete any data stored in the WordPress database including user credentials, configuration settings, and content management information. The vulnerability's accessibility through administrator privileges means that even if other security measures are in place, this weakness creates an elevated risk of full system compromise. Additionally, the attack surface is amplified when considering that WordPress installations often contain sensitive business or personal data that could be targeted by malicious actors.
Mitigation strategies should focus on immediate plugin updates to version 2.0.15 or later where the SQL injection vulnerability has been addressed through proper input sanitization and parameterized query implementation. Administrators should also implement additional security measures including regular monitoring of database queries, implementing web application firewalls, and ensuring that only necessary administrative privileges are granted to users. The principle of least privilege should be enforced where possible, limiting the scope of potential damage from any successful exploitation attempts. Organizations should also consider implementing database activity monitoring solutions that can detect unusual query patterns indicative of SQL injection attacks as part of their broader security posture.
From an ATT&CK framework perspective, this vulnerability aligns with techniques such as T1078 Valid Accounts for initial access and T1566 Phishing for Privilege Escalation when combined with other attack vectors. The exploitation pattern fits within the credential access and privilege escalation categories where attackers leverage administrative capabilities to gain deeper system control. Security teams should also consider implementing database security best practices including query parameterization, input validation, and regular security audits of third-party plugins as recommended in industry standards for protecting against such vulnerabilities.