PT-2021-16356 · WordPress · Elementor Website Builder

Joel + 1 · Published 2021-11-23 · Updated 2022-08-05 · CVE-2021-24891

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Elementor Website Builder WordPress plugin versions prior to 3.4.8

Description: The issue arises from the plugin's failure to sanitise or escape user input appended to the DOM via a malicious hash, resulting in a DOM Cross-Site Scripting problem. This allows malicious scripts to be executed, potentially leading to unauthorized actions on the website.

Recommendations: For versions prior to 3.4.8, update to version 3.4.8 or later to resolve the issue. As a temporary workaround, consider restricting access to the plugin's functionality that appends user input to the DOM until a patch is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24891

Affected Products

Elementor Website Builder

References · 7

• 🔥 https://jbelamor.com/xss-elementor-lightox.html · Exploit
• 🔥 https://wpscan.com/vulnerability/fbed0daa-007d-4f91-8d87-4bca7781de2d · Exploit
• https://osv.dev/vulnerability/CVE-2021-24891 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24891 · Security Note
• https://t.me/cibsecurity/32876 · Telegram Post
• https://t.me/cvenotify/23904 · Telegram Post
• https://t.me/poxek/2182 · Telegram Post