CVE-2018-6334

CVSS 9.8 CRITICALEPSS 1.9%CWE-621

Multipart-file uploads call variables to be improperly registered in the global scope. In cases where variables are not declared explicitly before being used this can lead to unexpected behavior. This affects all supported versions of HHVM prior to the patch (3.25.1, 3.24.5, and 3.21.9 and below).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Facebook · HHVM

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References

https://github.com/facebook/hhvm/commit/6937de5544c3eead3466b75020d8382080ed0cff https://hhvm.com/blog/2018/03/30/hhvm-3.25.2.html