CVE-2024-4209: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor
The Gutenberg Blocks with AI by Kadence WP – Page Builder Features plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the countdown timer in all versions up to, and including, 3.2.36 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Analysis
Technical Summary
The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress contains a stored cross-site scripting vulnerability (CWE-79) identified as CVE-2024-4209. This vulnerability exists in the countdown timer component due to improper neutralization of input during web page generation, allowing authenticated users with contributor or higher privileges to inject arbitrary scripts. These scripts execute in the context of any user viewing the compromised page, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to 3.2.36. The CVSS 3.1 base score is 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial impact on confidentiality and integrity. No patch or official fix has been documented yet.
Potential Impact
An attacker with contributor-level or higher access can inject malicious JavaScript into pages via the countdown timer feature. This script executes in the browsers of users who view the infected pages, potentially leading to theft of sensitive information or unauthorized actions performed on behalf of the user. The impact is limited to confidentiality and integrity with no direct availability impact. Since the vulnerability requires authenticated access, the attack surface is somewhat constrained.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access to trusted users only. Consider disabling or avoiding use of the countdown timer feature in Kadence Blocks if possible. Monitor official stellarwp communications for updates on patches or workarounds.
CVE-2024-4209: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor
Description
The Gutenberg Blocks with AI by Kadence WP – Page Builder Features plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the countdown timer in all versions up to, and including, 3.2.36 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress contains a stored cross-site scripting vulnerability (CWE-79) identified as CVE-2024-4209. This vulnerability exists in the countdown timer component due to improper neutralization of input during web page generation, allowing authenticated users with contributor or higher privileges to inject arbitrary scripts. These scripts execute in the context of any user viewing the compromised page, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to 3.2.36. The CVSS 3.1 base score is 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, and partial impact on confidentiality and integrity. No patch or official fix has been documented yet.
Potential Impact
An attacker with contributor-level or higher access can inject malicious JavaScript into pages via the countdown timer feature. This script executes in the browsers of users who view the infected pages, potentially leading to theft of sensitive information or unauthorized actions performed on behalf of the user. The impact is limited to confidentiality and integrity with no direct availability impact. Since the vulnerability requires authenticated access, the attack surface is somewhat constrained.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access to trusted users only. Consider disabling or avoiding use of the countdown timer feature in Kadence Blocks if possible. Monitor official stellarwp communications for updates on patches or workarounds.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2024-04-25T17:52:02.085Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6b84b7ef31ef0b5562f2
Added to database: 2/25/2026, 9:37:08 PM
Last enriched: 4/9/2026, 7:41:11 AM
Last updated: 4/12/2026, 9:25:40 AM
Views: 10
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.