Description

WordPress Plugin External Links-nofollow, noopener & new window 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 External Links-nofollow, noopener & new window version 2.55 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 2.56 or latest

References

https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/wp-external-links/external-links-255-authenticated-administrator-cross-site-scripting

https://plugins.svn.wordpress.org/wp-external-links/trunk/readme.txt

Related Vulnerabilities

WordPress Plugin WP24 Domain Check Cross-Site Scripting (1.6.2)

WordPress Plugin Broken Link Manager Multiple Vulnerabilities (0.4.5)

WordPress Plugin Simple Sticky Footer Cross-Site Request Forgery (1.3.2)

Moodle Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2013-4522)

Liferay Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') Vulnerability (CVE-2020-13445)

Severity

High

Classification

CWE-79 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS