CVE-2026-42548

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/flightphp/core/security/advisories/GHSA-fcx8-ph5r-mxr4
https://github.com/flightphp/core/security/advisories/GHSA-fcx8-ph5r-mxr4

Configurations

No configuration.

History

14 May 2026, 13:16

Type	Values Removed	Values Added
References	~~() https://github.com/flightphp/core/security/advisories/GHSA-fcx8-ph5r-mxr4 -~~	() https://github.com/flightphp/core/security/advisories/GHSA-fcx8-ph5r-mxr4 -

13 May 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-13 20:16

Updated : 2026-06-17 10:48

NVD link : CVE-2026-42548

Mitre link : CVE-2026-42548

CVE.ORG link : CVE-2026-42548

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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