Description

WordPress Plugin Related Posts for WordPress is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Related Posts for WordPress version 1.8.1 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 1.8.2 or latest

References

https://blog.sucuri.net/2015/04/security-advisory-xss-vulnerability-affecting-multiple-wordpress-plugins.html

http://www.barrykooij.com/several-security-updates-released/

https://wordpress.org/plugins/related-posts-for-wp/changelog/

Related Vulnerabilities

Ruby Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') Vulnerability (CVE-2017-17790)

WordPress 3.7.x Multiple Vulnerabilities (3.7 - 3.7.16)

WordPress 'wp-login.php' HTTP Response Splitting Vulnerability (1.2)

Dolphin Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2011-3728)

Moodle Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2013-3630)

Severity

High

Classification

CWE-79 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS