{"cve":"CVE-2026-6295","nvd":{"published":"2026-09-19T08:16:54.340","modified":"2026-09-21T13:33:33.387","status":"Deferred","description":"The WP Optimizer plugin for WordPress is vulnerable to SQL Injection via the 's' parameter in all versions up to and including 2.5.0. This is due to an unsafe subquery-detection branch in the Query::parse_key_compare_field() method that, when the user-supplied value matches the regex ^[(\\s]*SELECT\\s+, wraps the value in parentheses and embeds it directly into the SQL string without any escaping or quoting. While the normal LIKE code path correctly uses esc_sql($wpdb->esc_like(...)) and wraps the value in single quotes, this branch completely bypasses those protections. Because the attack payload (SELECT ...) contains no single quotes, WordPress's wp_magic_quotes() provides no protection. This makes it possible for authenticated attackers with administrator-level access to inject arbitrary SQL subqueries — including time-based blind payloads — that can be used to extract sensitive information from the database.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","score":4.9},"cwes":["CWE-89"],"references":["https://plugins.trac.wordpress.org/browser/wp-optimizer/tags/2.3.8/modules/supporters/activity-log/ActivityLog_Table.class.php#L343","https://plugins.trac.wordpress.org/browser/wp-optimizer/tags/2.3.8/vendors/wps-framework/Query.class.php#L455","https://plugins.trac.wordpress.org/browser/wp-optimizer/trunk/modules/supporters/activity-log/ActivityLog_Table.class.php#L343","https://plugins.trac.wordpress.org/browser/wp-optimizer/trunk/vendors/wps-framework/Query.class.php#L455","https://plugins.trac.wordpress.org/changeset/3508033"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-6295","score":0.00507,"percentile":0.43321,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}