CVE-2026-42550 HIGH

CVE-2026-42550: Flight: SQL Injection via unvalidated identifiers in SimplePdo::insert / update / delete

Vendor Flightphp
Product core
Weakness CWE-89 · SQLi
Published May 13, 2026
Last update May 14, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Flight is an extensible micro-framework for PHP. Prior to 3.18.1, SimplePdo::insert(), SimplePdo::update(), and SimplePdo::delete() build SQL statements by concatenating the $table argument and the keys of the $data array directly into the query, with no identifier quoting and no validation. When an application forwards user-controlled data shapes to these helpers — a common and documented pattern, e.g. $db->insert('users', $request->data->getData()) — an attacker can inject arbitrary SQL by crafting malicious array keys. This vulnerability is fixed in 3.18.1.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
May 14, 2026 Record updated