Is CVE-2021-24973 actively exploited?

No active exploitation of CVE-2021-24973 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-24973 be exploited remotely?

Yes. CVE-2021-24973 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-24973?

CVE-2021-24973 has a CVSS score of 6.1 (MEDIUM).

HOME VULNERABILITIESCVE-2021-24973

MEDIUM

CVE-2021-24973

CWE-79Published: January 3, 2022· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

The Site Reviews WordPress plugin before 5.17.3 does not sanitise and escape the site-reviews parameter of the glsr_action AJAX action (available to unauthenticated and any authenticated users), allowing them to perform Cross-Site Scripting attacks against logged in admins viewing the Tool dashboard of the plugin

NVD Source

Technical Analysis

CVE-2021-24973 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.