Is CVE-2021-24202 actively exploited?

Yes. CVE-2021-24202 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-24202 be exploited remotely?

The attack vector of CVE-2021-24202 has not been classified yet.

What is the CVSS score of CVE-2021-24202?

CVE-2021-24202 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-24202

UNKNOWNCISA KEVIN THE WILD

CVE-2021-24202

Published: April 11, 2026

EPSS:0.11%probability of exploitation in 30 daysPercentile:29.3th

Official Description

In the Elementor Website Builder WordPress plugin before 3.1.4, the heading widget (includes/widgets/heading.php) accepts a ‘header_size’ parameter. Although the element control lists a fixed set of possible html tags, it is possible for a user with Contributor or above permissions to send a modified ‘save_builder’ request with this parameter set to ‘script’ and combined with a ‘title’ parameter containing JavaScript, which will then be executed when the saved page is viewed or previewed.

NVD Source

Risk Analysis

A cross-site scripting (XSS) vulnerability exists in the Elementor Website Builder WordPress plugin's heading widget. Users with Contributor-level permissions or higher can inject malicious JavaScript, which executes when the saved page is viewed or previewed. This vulnerability is actively exploited, posing a risk of session hijacking or defacement.

This vulnerability is actively exploited in the wild and is listed in CISA's Known Exploited Vulnerabilities Catalog. This confirms that attackers are leveraging this flaw.

Recommended Action

Upgrade the Elementor Website Builder WordPress plugin to version 3.1.4 or later. Ensure that all user-supplied input, especially in content creation, is properly sanitized and escaped.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-24202 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-24202 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.