5.4
MEDIUM
CVE-2021-24208
WordPress Page Builder Unauthenticated XSS and HTML Injection
Description

The editor of the WP Page Builder WordPress plugin before 1.2.4 allows lower-privileged users to insert unfiltered HTML, including JavaScript, into pages via the “Raw HTML” widget and the “Custom HTML” widgets (though the custom HTML widget requires sending a crafted request - it appears that this widget uses some form of client side validation but not server side validation), all of which are added via the “page_builder_data” parameter when performing the “wppb_page_save” AJAX action. It is also possible to insert malicious JavaScript via the “wppb_page_css” parameter (this can be done by closing out the style tag and opening a script tag) when performing the “wppb_page_save” AJAX action.

INFO

Published Date :

April 5, 2021, 7:15 p.m.

Last Modified :

April 12, 2021, 1:10 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.3
Affected Products

The following products are affected by CVE-2021-24208 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Themeum wp_page_builder
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-24208.

URL Resource
https://wpscan.com/vulnerability/c20e243d-b0de-4ae5-9a0d-b9d02c9b8141 Exploit Third Party Advisory
https://www.themeum.com/wp-page-builder-updated-v1-2-4/ Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-24208 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-24208 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 12, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://wpscan.com/vulnerability/c20e243d-b0de-4ae5-9a0d-b9d02c9b8141 No Types Assigned https://wpscan.com/vulnerability/c20e243d-b0de-4ae5-9a0d-b9d02c9b8141 Exploit, Third Party Advisory
    Changed Reference Type https://www.themeum.com/wp-page-builder-updated-v1-2-4/ No Types Assigned https://www.themeum.com/wp-page-builder-updated-v1-2-4/ Patch, Vendor Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:themeum:wp_page_builder:*:*:*:*:*:wordpress:*:* versions up to (excluding) 1.2.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-24208 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-24208 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.00%

score

0.22495

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability