Description
The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'evf_toast_type' parameter in all versions up to, and including, 3.6.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the sibling evf_toast parameter to decode successfully via atob(), but this is a trivially attacker-controlled prerequisite.
Published: 2026-10-29
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Thu, 29 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 29 Oct 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions everest Forms
Wpeverest
Wpeverest everest Forms
Vendors & Products Wordpress-extensions
Wordpress-extensions everest Forms
Wpeverest
Wpeverest everest Forms

Thu, 29 Oct 2026 09:45:00 +0000

Type Values Removed Values Added
Description The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'evf_toast_type' parameter in all versions up to, and including, 3.6.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the sibling evf_toast parameter to decode successfully via atob(), but this is a trivially attacker-controlled prerequisite.
Title Everest Forms <= 3.6.2 - Reflected Cross-Site Scripting via 'evf_toast_type' Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


Subscriptions

Wordpress-extensions Everest Forms
Wpeverest Everest Forms
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-10-29T10:45:41.225Z

Reserved: 2026-09-14T20:39:22.523Z

Link: CVE-2026-91152

cve-icon Vulnrichment

Updated: 2026-10-29T10:36:00.637Z

cve-icon NVD

Status : Received

Published: 2026-10-29T10:17:06.693

Modified: 2026-10-29T11:17:37.650

Link: CVE-2026-91152

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T11:30:14Z

Weaknesses