Cross-site scripting in PHPMailer



Published: 2017-06-25 | Updated: 2017-08-02
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-11503
CWE-ID CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		PHPMailer
Web applications / Other software

Vendor phpmailer.sourceforge.net

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Cross-site scripting

EUVDB-ID: #VU7653

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2017-11503

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

Exploit availability: No

Description

The disclosed vulnerability allows a remote unauthenticated attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient validation of user-supplied data passed via specially crafted parameter to 'code_generator.phps' example script. 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 5.2.24.

Vulnerable software versions

PHPMailer: 5.2 - 5.2.23

CPE2.3 External links

http://packetstormsecurity.com/files/143138/phpmailer-xss.txt


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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