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1 vulnerability found for WP Optimizer – PageSpeed, Cache, Minify & Core Web Vitals by sh1zen

CVE-2026-6295 (GCVE-0-2026-6295)
Vulnerability from cvelistv5
Published
2026-09-19 07:43
Modified
2026-09-19 14:01
CWE
  • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Summary
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.
Show details on NVD website


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                "id": "CVE-2026-6295",
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-19T13:23:44.016400Z",
                "version": "2.0.3"
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          "value": "The WP Optimizer plugin for WordPress is vulnerable to SQL Injection via the \u0027s\u0027 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-\u003eesc_like(...)) and wraps the value in single quotes, this branch completely bypasses those protections. Because the attack payload (SELECT ...) contains no single quotes, WordPress\u0027s wp_magic_quotes() provides no protection. This makes it possible for authenticated attackers with administrator-level access to inject arbitrary SQL subqueries \u2014 including time-based blind payloads \u2014 that can be used to extract sensitive information from the database."
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        "dateUpdated": "2026-09-19T07:43:15.623Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
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      "references": [
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          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/4da302ab-8a5d-481b-8b28-a798e0982893?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-optimizer/trunk/vendors/wps-framework/Query.class.php#L455"
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        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-optimizer/tags/2.3.8/vendors/wps-framework/Query.class.php#L455"
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        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-optimizer/trunk/modules/supporters/activity-log/ActivityLog_Table.class.php#L343"
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      "title": "WP Optimizer \u003c= 2.5.0 - Authenticated (Administrator+) SQL Injection via \u0027s\u0027 Parameter"
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