CVE-2026-42548

N/A

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.

CVE Details

CVSS v3.1 ScoreN/A

Published5/13/2026

Last Modified5/13/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-79

References

https://github.com/flightphp/core/security/advisories/GHSA-fcx8-ph5r-mxr4(security-advisories@github.com)

IOC Correlations

No correlations recorded

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