Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionCVE.org
The Quentn WP plugin for WordPress is vulnerable to SQL Injection via the 'qntn_wp_access' cookie in all versions up to, and including, 1.2.12. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query in the get_user_access() method. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
AnalysisAI
The Quentn WP plugin for WordPress contains an SQL Injection vulnerability that allows unauthenticated attackers to extract sensitive database information through a malicious 'qntn_wp_access' cookie value. All versions up to and including 1.2.12 are affected. With a CVSS score of 7.5 and requiring no authentication or user interaction, this represents a significant risk for WordPress sites using this plugin, though no active exploitation (KEV) or public proof-of-concept has been documented at this time.
Technical ContextAI
This vulnerability affects the Quentn WP WordPress plugin (CPE: cpe:2.3:a:quentn:quentn_wp:*:*:*:*:*:*:*:*), specifically in the get_user_access() method within the class-quentn-wp-restrict-access.php file. The root cause is classified as CWE-89 (SQL Injection), resulting from insufficient escaping of user-supplied input from the 'qntn_wp_access' cookie parameter and inadequate parameterization of SQL queries. WordPress plugins often handle cookies for authentication and access control, and when these cookie values are directly concatenated into SQL queries without proper sanitization or use of prepared statements, attackers can inject arbitrary SQL commands. The vulnerability exists at line 483 of the affected file, where the cookie value is processed without adequate input validation or query parameterization.
RemediationAI
WordPress administrators should immediately update the Quentn WP plugin to a version newer than 1.2.12 once a patched version becomes available from the vendor. Monitor the official WordPress plugin repository and Quentn's vendor communications for security updates. Until a patch is deployed, consider temporarily disabling the Quentn WP plugin if it is not critical to operations. Implement Web Application Firewall (WAF) rules to filter malicious cookie values targeting the 'qntn_wp_access' parameter, specifically blocking patterns consistent with SQL injection payloads such as UNION statements, comment sequences, and SQL metacharacters. Review database access logs for suspicious queries and consider restricting database user permissions to limit the impact of potential SQL injection attacks. Consult Wordfence's threat intelligence report at https://www.wordfence.com/threat-intel/vulnerabilities/id/653e20ae-f018-41b5-a973-f73fddae70e5?source=cve for additional mitigation guidance.
Unauthenticated SQL injection in the Quentn WP WordPress plugin before version 1.2.15 allows remote attackers to extract
Authenticated SQL injection in the Quentn WP WordPress plugin before 1.2.15 allows high-privilege users (administrators)
Same weakness CWE-89 – SQL Injection
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-14188
GHSA-vf2m-4v37-jw5p