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E is for Exploit: CVE-2026-17543 — SQL Injection in PHP's pgsql Extension via the `E'...'` Backslash Breakout

On July 30, 2026, NIST’s National Vulnerability Database published CVE-2026-17543, a SQL injection vulnerability sitting not in some neglected WordPress plugin, but in PHP itself — specifically the pgsql extension that ships with the language. NVD scores it 9.8 Critical (C…

Vulnerability Web-Security CWE-89 SQL-Injection Backslash-Breakout PHP PostgreSQL
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