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

Quick assessment

Affected
flightphp core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flight是Mike Cao个人开发者的一个PHP微框架。 Flight 3.18.1之前版本存在SQL注入漏洞，该漏洞源于SimplePdo::insert()、SimplePdo::update()和SimplePdo::delete()将$table参数和$data数组的键直接拼接至SQL语句，未进行标识符引用和验证，可能导致SQL注入。

CVSS 8.8 · High EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
flightphp core < 3.18.1 affected
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I. Basic Information for CVE-2026-42550

Vulnerability Information
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Vulnerability Title
Flight: SQL Injection via unvalidated identifiers in SimplePdo::insert / update / delete
Source: CVE Program / CVE List V5
Vulnerability Description
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', $request->data->getData()) — an attacker can inject arbitrary SQL by crafting malicious array keys. This vulnerability is fixed in 3.18.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Flight SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flight是Mike Cao个人开发者的一个PHP微框架。 Flight 3.18.1之前版本存在SQL注入漏洞，该漏洞源于SimplePdo::insert()、SimplePdo::update()和SimplePdo::delete()将$table参数和$data数组的键直接拼接至SQL语句，未进行标识符引用和验证，可能导致SQL注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
flightphp core < 3.18.1 -

II. Public POCs for CVE-2026-42550

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III. Intelligence Information for CVE-2026-42550

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Vendor Advisories for CVE-2026-42550 (1)

Same Patch Batch · flightphp · 2026-05-13 · 5 CVEs total

CVE-2026-42552 7.5 HIGH Flight: Sensitive information disclosure via default error handler in flightphp/core
CVE-2026-42551 7.5 HIGH Flight: HTTP method override enabled by default enables CSRF escalation and middleware byp
CVE-2026-42549 4.4 MEDIUM Flight: Path traversal in `make:controller` CLI creates arbitrary directories outside proj
CVE-2026-42548 Flight: Reflected XSS via unvalidated JSONP callback in Flight::jsonp()

IV. Related Vulnerabilities

Same product: core
Same vendor: flightphp
Same weakness: CWE-89

V. Comments for CVE-2026-42550

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