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CVE-2026-42548
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-05-13T20:16:21.787 · Last modified 2026-06-17T10:48:01.063

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.