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redhatcveRedhat.comRH:CVE-2020-36326
HistoryMay 21, 2022 - 12:22 a.m.

CVE-2020-36326

2022-05-2100:22:19
redhat.com
access.redhat.com
41
cve-2020-36326
phpmailer
object injection
phar deserialization
addattachment
unc pathname
unintended side effect
code fix
exploitation

EPSS

0.011

Percentile

84.4%

PHPMailer 6.1.8 through 6.4.0 allows object injection through Phar Deserialization via addAttachment with a UNC pathname. NOTE: this is similar to CVE-2018-19296, but arose because 6.1.8 fixed a functionality problem in which UNC pathnames were always considered unreadable by PHPMailer, even in safe contexts. As an unintended side effect, this fix eliminated the code that blocked addAttachment exploitation.