CVE-2021-37704: Exposure of Resource to Wrong Sphere

August 12, 2021 (updated October 27, 2022)

PhpFastCache is a high-performance backend cache system (packagist package phpfastcache/phpfastcache). the phpinfo() can be exposed if the /vendor is not protected from public access. This is a rare situation today since the vendor directory is often located outside the web directory or protected via server rule (.htaccess, etc).

References

github.com/flextype/flextype/issues/567
nvd.nist.gov/vuln/detail/CVE-2021-37704

Code Behaviors & Features

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