# CVE-2026-19858: JetFormBuilder authorization bypass in request resolution

Source: https://junglewise.ai/threats/cve-2026-19858-jetformbuilder-authorization-bypass-in-request-resolution  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-05. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-19858 · Severity: high · CVSS 7.5 · Published 2026-09-05

JetFormBuilder is a WordPress plugin that enables users to build dynamic forms. The plugin fails to validate user permissions when processing form requests during page rendering, allowing unauthenticated attackers to retrieve sensitive data including user password hashes, private posts, draft content, and secrets stored by other plugins—compromising user accounts and exposing confidential information.

Technologies: [Crocoblock JetFormBuilder](https://junglewise.ai/threats/technologies/jetformbuilder). Vendors: [Crocoblock](https://junglewise.ai/threats/vendors/crocoblock).

## Quick answers

**Is CVE-2026-19858 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-19858 being exploited in the wild.

**How severe is CVE-2026-19858?** High severity, with a CVSS score of 7.5, published 5 September 2026.

**Which products and versions are affected?** Crocoblock JetFormBuilder before 3.6.5.2.

**Is there a fix for CVE-2026-19858?** A patch was published on 2026-09-05: Fixed in version 3.6.5.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-19858 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-19858?** Check whether you run Crocoblock JetFormBuilder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is an authorization bypass vulnerability (CWE-200: Exposure of Sensitive Information) in the request resolution logic of JetFormBuilder. The plugin does not perform proper permission checks when resolving request-derived data during page rendering, allowing unauthenticated users to read arbitrary user, post, and term properties and their associated metadata. The attack vector is network-based and requires no authentication or user interaction; an attacker can craft requests to access password hashes, private/draft content, and plugin metadata. The vulnerability has been patched in version 3.6.5.2.

## Affected products

- Crocoblock JetFormBuilder before 3.6.5.2

## Timeline

- 2026-09-03: disclosed
- 2026-09-05: patched: Fixed in version 3.6.5.2

## References

- [https://wpscan.com/vulnerability/a9d091f3-6887-4f26-a736-ba26a81d2b32/](https://wpscan.com/vulnerability/a9d091f3-6887-4f26-a736-ba26a81d2b32/)

## Related threats

- [Crocoblock JetFormBuilder stored cross-site scripting](https://junglewise.ai/threats/cve-2026-123482-improper-neutralization-of-input-during-web-page-generation)
- [Crocoblock JetFormBuilder cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-123484-improper-neutralization-of-input-during-web-page-generation)
- [Crocoblock JetFormBuilder content injection in form pages](https://junglewise.ai/threats/cve-2026-123860-improper-neutralization-of-script-related-html-tags-in-a-web)
- [Crocoblock JetFormBuilder stored XSS in form fields](https://junglewise.ai/threats/cve-2026-123483-improper-neutralization-of-script-related-html-tags-in-a-web)
- [JetFormBuilder Stored Cross-Site Scripting via form field mapping](https://junglewise.ai/threats/cve-2026-119183-the-jetformbuilder-dynamic-blocks-form-builder-plugin-for)