AIKIDO-2026-719942
flightphp/core is vulnerable to Cross-Site Scripting (XSS)
82
High Risk
This Affects:
flightphp/coreTL;DR
FlightPHP's View::e() output-escaping helper calls htmlentities() without explicit flags, so on PHP 7.4 and 8.0 the default ENT_COMPAT flag leaves single quotes unescaped. user controlled values rendered through e() inside a single-quoted HTML attribute break out of the attribute and inject arbitrary markup or script. The fix passes ENT_QUOTES | ENT_SUBSTITUTE and 'UTF-8' to htmlentities() so single quotes are escaped on every supported PHP version.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you run on PHP 7.4 or 8.0.
Background info
flightphp/core is vulnerable to Cross-Site Scripting (XSS) in versions 1.1.5 - 3.19.2.
How to fix this
Upgrade the flightphp/core library to the patch version.
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