CVE-2024-1056: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in FunnelKit FunnelKit Funnel Builder Pro
The FunnelKit Funnel Builder Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'allow_iframe_tag_in_post' function which uses the 'wp_kses_allowed_html' filter to globally allow script and iframe tags in posts in all versions up to, and including, 3.4.5. This makes it possible for authenticated attackers, with contributor 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 FunnelKit Funnel Builder Pro plugin for WordPress contains a stored cross-site scripting vulnerability due to improper neutralization of input during web page generation. Specifically, the 'allow_iframe_tag_in_post' function uses the 'wp_kses_allowed_html' filter to globally permit script and iframe tags in posts, enabling authenticated users with contributor access or higher to inject arbitrary web scripts. These scripts execute whenever a user accesses the compromised page. This issue affects all versions up to 3.4.5 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).
Potential Impact
An attacker with contributor or higher privileges can inject malicious scripts that execute in the context of other users viewing the affected pages. This can lead to partial confidentiality and integrity impacts, such as theft of user data or session tokens, and modification of displayed content. There is no direct impact on availability. The vulnerability allows cross-site scripting with persistent payloads.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or limiting the use of the affected plugin. Monitor official FunnelKit channels for updates and apply patches promptly once released.
CVE-2024-1056: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in FunnelKit FunnelKit Funnel Builder Pro
Description
The FunnelKit Funnel Builder Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'allow_iframe_tag_in_post' function which uses the 'wp_kses_allowed_html' filter to globally allow script and iframe tags in posts in all versions up to, and including, 3.4.5. This makes it possible for authenticated attackers, with contributor 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 FunnelKit Funnel Builder Pro plugin for WordPress contains a stored cross-site scripting vulnerability due to improper neutralization of input during web page generation. Specifically, the 'allow_iframe_tag_in_post' function uses the 'wp_kses_allowed_html' filter to globally permit script and iframe tags in posts, enabling authenticated users with contributor access or higher to inject arbitrary web scripts. These scripts execute whenever a user accesses the compromised page. This issue affects all versions up to 3.4.5 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).
Potential Impact
An attacker with contributor or higher privileges can inject malicious scripts that execute in the context of other users viewing the affected pages. This can lead to partial confidentiality and integrity impacts, such as theft of user data or session tokens, and modification of displayed content. There is no direct impact on availability. The vulnerability allows cross-site scripting with persistent payloads.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or limiting the use of the affected plugin. Monitor official FunnelKit channels for updates and apply patches promptly once released.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2024-01-29T21:07:14.378Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6d1eb7ef31ef0b56e1ab
Added to database: 2/25/2026, 9:43:58 PM
Last enriched: 4/9/2026, 7:38:36 PM
Last updated: 4/12/2026, 12:15:18 PM
Views: 15
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