Cross-site scripting (XSS) in WordPress WordPress

1) Cross-site scripting (XSS)

EUVDB-ID: #VU4857

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-5488

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 "wp-admin/update-core.php" script in WordPress before 4.7.1 when processing the "name" and "version" headers of a plugin. A remote attacker can trick the victim to follow a specially 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 4.7.1

Vulnerable software versions

WordPress: 4.7

CPE2.3

• cpe:2.3:a:wordpress_org:wordpress:4.7:*:*:*:*:*:*:*

External links

https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/

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.