XSS in Crocoblock Jetformbuilder

CVE-2026-84817

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

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (15.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-84817: held from 0.001 to 0.003.

EPSS over last 30 days · oldest: 0.001 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-84817?
CVE-2026-84817 is a high-severity vulnerability in Crocoblock Jetformbuilder, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-09-08.
How severe is CVE-2026-84817?
High severity. CVSS v3 base score is 7.1 out of 10.