Vulnerability CVE-2019-7441
Published: 2019-03-21

Description:
** DISPUTED ** cgi-bin/webscr?cmd=_cart in the WooCommerce PayPal Checkout Payment Gateway plugin 1.6.8 for WordPress allows Parameter Tampering in an amount parameter (such as amount_1), as demonstrated by purchasing an item for lower than the intended price. NOTE: The plugin author states it is true that the amount can be manipulated in the PayPal payment flow. However, the amount is validated against the WooCommerce order total before completing the order, and if it doesn?t match then the order will be left in an ?On Hold? state.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
WordPress Plugin PayPal Checkout Payment Gateway 1.6.8 Parameter Tampering
Vikas Chaudhary
06.04.2019

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Woocommerce -> Paypal checkout payment gateway 

 References:
http://packetstormsecurity.com/files/152362/WordPress-PayPal-Checkout-Payment-Gateway-1.6.8-Parameter-Tampering.html
https://gkaim.com/cve-2019-7441-vikas-chaudhary/
https://wordpress.org/support/topic/vulnerabilty-in-plugin/#post-11899173
https://www.exploit-db.com/exploits/46632/
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