CVE-2026-19857

MediumCVSS 4.8/10Last modified Sep 16, 2026

Description

The Formidable Forms WordPress plugin before 6.35 does not prevent a request-derived value from reaching the WordPress shortcode parser when it substitutes a supported token into a form's custom HTML, allowing unauthenticated visitors to have arbitrary shortcodes, with attacker-chosen attributes, executed server-side on any page displaying an affected form.

Metrics

CVSS 3.1 4.8/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-74

Affected software

No affected versions have been published.

Timeline

Published: Sep 16, 2026
Last modified: Sep 16, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-198587.5The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 does not perform authorisation checks when resolving reques CVE-2026-198596.5The JetFormBuilder WordPress plugin before 3.6.5.2 does not sanitize a request parameter before rendering it as message content, allowing un CVE-2026-19866.1The FloristPress for Woo – Customize your eCommerce store for your Florist plugin for WordPress is vulnerable to Reflected Cross-Site Script CVE-2026-198605.5The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.3 does not sufficiently restrict which PHP functions can be u CVE-2026-198614.7The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 does not properly sanitise and escape a form field's value CVE-2026-198624.8The JetFormBuilder WordPress plugin before 3.6.5.2 does not validate or strip line breaks from address values it sources from submitted form CVE-2026-198639.3An unauthenticated client may access certain protected resources when using EthereumAuthenticator if the request path contains the configure CVE-2026-198645.6Eclipse Jetty's `SessionAuthentication` retains authentication credentials in a serializable object. When the credentials contain a plaintex CVE-2026-198674.3Mattermost versions 11.10.x <= 11.10.0, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10 fail to cap the number and size of mention key CVE-2026-198697.6@neo4j/graphql from 5.2.0 until the patched versions fails to enforce field-level @authentication rules on root custom-resolver fields when CVE-2026-19875.4The Scheduler Widget plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 0.1.6. Thi CVE-2026-198708.6Authorization Bypass Through User-Controlled Key in the payroll module in Roskus Prospero Flow CRM before 5.15.10 allows authenticated users