Description

WordPress Plugin Relevanssi Premium-A Better Search 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 Relevanssi Premium-A Better Search version 1.14.8 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 1.14.9 or latest

References

https://security.dxw.com/advisories/reflected-xss-in-relevanssi-premium-when-using-relevanssi_didyoumean-could-allow-unauthenticated-attacker-to-do-almost-anything-an-admin-can/

https://www.relevanssi.com/release-notes/premium-1-14-9/

Related Vulnerabilities

MySQL Other Vulnerability (CVE-2005-0710)

WordPress Plugin PropertyHive Cross-Site Scripting (1.4.14)

Envoy Proxy Reachable Assertion Vulnerability (CVE-2021-29258)

WordPress Plugin WP e-Commerce Predictive Search Cross-Site Scripting (1.1.1)

WordPress Plugin Smart Forms-when you need more than just a contact form Security Bypass (2.6.70)

Severity

High

Classification

CWE-79 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 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

Tags

Missing Update XSS