WordPress security changelog
HIGH CVE-2026-84817 Deferred

JetFormBuilder permits unauthenticated cross-site scripting

JetFormBuilder through 3.6.5.1 allows an unauthenticated attacker to supply script content that executes in another user's browser when that user interacts with affected content. The CNA identifies 3.6.5.2 as unaffected and rates user interaction as required.

CVE / CNA score 7.1 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
JetFormBuilder
Plugin slug
jetformbuilder
Affected
n/a through 3.6.5.1
Safe version
3.6.5.2
Published
Sep 08, 2026
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Sep 08, 2026 and is one of 25 known issues for this plugin.

Update, patch or deactivate.

Update JetFormBuilder to 3.6.5.2 or later.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

Unauthenticated Cross Site Scripting (XSS) in JetFormBuilder <= 3.6.5.1 versions.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Primary and upstream sources