Cross-site scripting in Payment Form for PayPal Pro for WordPress

1) Cross-site scripting

EUVDB-ID: #VU19820

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-7666

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in the (1) cp_updateMessageItem and (2) cp_deleteMessageItem functions in cp_ppp_admin_int_message_list.inc.php in the Payment Form for PayPal Pro plugin before 1.0.2 for WordPress when processing the cal parameter. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update to version 1.0.2.

Vulnerable software versions

Payment Form for PayPal Pro: 1.0.1

External links

http://www.securityfocus.com/archive/1/536602/100/0/threaded
http://plugins.trac.wordpress.org/changeset/1254452/payment-form-for-paypal-pro
http://wordpress.org/plugins/payment-form-for-paypal-pro/#developers
http://wpvulndb.com/vulnerabilities/8210

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.