CVE-2021-24719

Enfold - Responsive Multi-Purpose Theme < 4.8.4 - Reflected Cross-Site Scripting

2021-10-18 00:00
Francisco Díaz-Pache Alonso

Strategic Overview

Status
Patched in 4.8.4
Affected Theme
Enfold - Responsive Multi-Purpose Theme
Affected Version
< 4.8.4
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2021-24719
View all Enfold - Responsive Multi-Purpose Theme vulnerabilities

At a glance

CVE-2021-24719 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Enfold - Responsive Multi-Purpose Theme WordPress theme, affecting versions < 4.8.4. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.8.4; sites on affected versions should update now. Disclosed October 2021, reported by Francisco Díaz-Pache Alonso.

Vulnerability Overview

The Enfold Enfold WordPress theme before 4.8.4 was vulnerable to Reflected Cross-Site Scripting (XSS). The vulnerability is present on Enfold versions previous than 4.8.4 which use Avia Page Builder.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Enfold - Responsive Multi-Purpose Theme < 4.8.4 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Enfold - Responsive Multi-Purpose Theme the fix is 4.8.4: builds < 4.8.4 are affected, anything from 4.8.4 onward is not.

Remediation

Update to version 4.8.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Enfold - Responsive Multi-Purpose Theme: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Enfold - Responsive Multi-Purpose Theme 4.8.4 closes this, and updating the theme is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24719https://www.wordfence.com/threat-intel/vulnerabilities/id/c0793db6-5a9b-4726-935e-c8d614443611https://nvd.nist.gov/vuln/detail/CVE-2021-24719

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C