CVE-2026-42548— Flight: Reflected XSS via unvalidated JSONP callback in Flight::jsonp()
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I. Basic Information for CVE-2026-42548
Vulnerability Information
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Vulnerability Title
Flight: Reflected XSS via unvalidated JSONP callback in Flight::jsonp()
Source: NVD (National Vulnerability Database)
Vulnerability Description
Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Flight::jsonp() concatenates the ?jsonp= query parameter directly into an application/javascript response body without validating that the value is a legal JavaScript identifier. An attacker can inject arbitrary JavaScript that executes in the response origin, enabling reflected cross-site scripting. This vulnerability is fixed in 3.18.1.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Flight 跨站脚本漏洞
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之前版本存在跨站脚本漏洞，该漏洞源于Flight::jsonp()将?jsonp=查询参数直接连接到application/javascript响应体中，未验证值是否为合法JavaScript标识符，可能导致反射型跨站脚本攻击。
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
II. Public POCs for CVE-2026-42548
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- https://github.com/flightphp/core/security/advisories/GHSA-fcx8-ph5r-mxr4x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-42548
Same Patch Batch · flightphp · 2026-05-13 · 5 CVEs total
| CVE-2026-42550 | 8.8 HIGH | Flight: SQL Injection via unvalidated identifiers in SimplePdo::insert / update / delete |
| 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 |
IV. Related Vulnerabilities
Same product: core
- CVE-2026-45158
OPNsense: Command Injection via Attacker-Controlled DHCP Con - CVE-2026-44194
OPNsense: RCE on user managment - CVE-2026-44195
OPNsense: Authentication lockout bypass - CVE-2026-44193
OPNsense: RCE via XMLRPC endpoint using `opnsense.restore_co - CVE-2026-42552
Flight: Sensitive information disclosure via default error h
Same vendor: flightphp
- CVE-2026-42552
Flight: Sensitive information disclosure via default error h - CVE-2026-42551
Flight: HTTP method override enabled by default enables CSRF - CVE-2026-42550
Flight: SQL Injection via unvalidated identifiers in SimpleP - CVE-2026-42549
Flight: Path traversal in `make:controller` CLI creates arbi - CVE-2014-125127
Denial of Service (DoS) vulnerability in mikecao/flight
Same weakness: CWE-79
- CVE-2026-8656
jsondiffpatch < 0.7.6 格式化器跨站脚本漏洞 - CVE-2026-44549
Open WebUI: Stored XSS in excel file preview - CVE-2026-45299
Open WebUI: Stored Cross-Site Scripting In Profile Picture - CVE-2026-45665
Open WebUI: Stored XSS in Banner Component via Improper Sani - CVE-2026-45318
Open WebUI: Stored XSS via unsanitized Office/Excel/DOCX fil
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