NetSight
IP …
medium5.3

CVE-2021-21707

In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filena…

Impact

In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.

Affected products

VendorProductAffected versions
PhpPhp
from 7.3.0 before 7.3.33
from 7.4.0 before 7.4.26
from 8.0.0 before 8.0.13
NetappClustered Data Ontap
All versions
DebianDebian Linux
Versions 10.0, 11.0
TenableTenable.Sc
before 5.21.0

Weakness classification

CWE-159

References