SB2016082701 - Cross-site scripting in 404 to 301 for WordPress

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: N/A)

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

CVSSv4: 5.1 [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]

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

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in 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.

Remediation

Install update from vendor's website.

References

• https://gist.github.com/ldionmarcil/6793df929449f8781bb1e213d7e75e23
• https://github.com/joel-james/404-to-301/commit/7a4e2798eca79828c1611988289e06b6d9c18b61
• https://sumofpwn.nl/advisory/2016/stored_cross_site_scripting_vulnerability_in_404_to_301_wordpress_plugin.html
• http://seclists.org/fulldisclosure/2016/Nov/46