CVE-2026-15300: GEO my WP <= 4.5.4 - Unauthenticated SQL Injection via 'distance' / 'lat' / 'lng' Parameters

The GEO my WP plugin for WordPress was vulnerable to SQL Injection via the 'distance', 'lat', and 'lng' parameters in versions up to, and including, 4.5.4. The values were read from $SERVER['QUERYSTRING'] via parsestr() (bypassing wpmagicquotes, which does not cover $SERVER), then passed through bare escsql() before being interpolated into unquoted numeric positions in the proximity-search query (HAVING/SELECT clause distance math, BETWEEN bounding-box pre-filter) built by gmwlocationsquery() in plugins/posts-locator/includes/class-gmw-wp-query.php. Because escsql() only escapes string delimiters and these positions are numeric, payloads such as 1 OR SLEEP(3) survived sanitization. Fixed in 4.5.5 by adding an upstream isnumeric() guard that short-circuits the WHERE clause to AND 1 = 0 when either coordinate is non-numeric, and by replacing the three escsql() calls with (float) casts.