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WordPress JetFormBuilder plugin <= 3.6.8 - Cross Site Scripting (XSS) vulnerability

7.1HighCNA
Exploited
No known exploitation
Fix
Fixed in 3.6.8.1
Who is exposed
Specific setups only

Do first: Check whether your setup matches what the bug needs. Plugin version 3.6.8 or earlier (vulnerable versions <= 3.6.8).

Published
Last modified
19/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

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.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original 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.

cve.now Index

19Pcve.now Index 19 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure12/25Specific setups only, reachable over the network without a login
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity7.1/10CVSS 7.1
  • No patch0/5No signal

What would change the score

  • Would score about 69 if added to CISA KEV
  • Would score about 64 if CISA's SSVC rates exploitation active

What to do

  • Check whether your setup matches what the bug needs.

    Plugin version 3.6.8 or earlier (vulnerable versions <= 3.6.8).
  • Upgrade to a fixed version: 3.6.8.1.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • jetformbuilder

    through 3.6.8

Evidence 1

  1. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-123484

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: cve.now feed data

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: patchstack.com

Which versions are affected by CVE-2026-123484?

jetformbuilder: through 3.6.8.Source: cve.now feed data

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: patchstack.com

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: patchstack.com