SQL injection in PHP - CVE-2026-17543
Published: August 3, 2026
Vulnerability identifier: #VU140832
CSH Severity: High
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-17543
CWE-ID: CWE-89
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.
The vulnerability exists due to insufficient sanitization of user-supplied data in ext-pgsql extension. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.
Affected software
PHP
How to mitigate CVE-2026-17543
Install updates from vendor's website.
PHP - addressed in versions 8.2.33, 8.3.33, 8.4.24, 8.5.9