Cross-site request forgery in WordPress WordPress

1) Cross-site request forgery

EUVDB-ID: #VU6593

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-9066

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to redirect users to arbitrary website.

The vulnerability exists due to insufficient validation of user-supplied data before redirecting visitors in the HTTP class. A remote attacker can exploit this vulnerability to interact with the web server using SSRF vector.

Successful exploitation of the vulnerability may allow an attacker to send HTTP requests to 0.0.0.0 on port 80, 443 and 8080.

Example:

http://[host]/wp-admin/press-this.php?u=http://[HOST|IP]

Mitigation

Update to version 4.7.5.

Vulnerable software versions

WordPress: 4.7 - 4.7.4

External links

http://wordpress.org/news/2017/05/wordpress-4-7-5/

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.