Information disclosure in Jetformbuilder — Dynamic Blocks Form Builder

CVE-2026-19858

The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 does not perform authorisation checks when resolving request-derived data during page rendering, allowing unauthenticated users to read arbitrary user, post and term properties and metadata, including password hashes, private and draft content, and secrets other JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 store in metadata.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.1% 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-2026-19858: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Jetformbuilder — Dynamic Blocks Form Builder

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-19858?
CVE-2026-19858 is a high-severity vulnerability in Jetformbuilder — Dynamic Blocks Form Builder, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-09-05.
How severe is CVE-2026-19858?
High severity. CVSS v3 base score is 7.5 out of 10.