CVE-2025-3421 — Cross-site Scripting in Everest Forms

CWE-79 — Cross-site ScriptingCWE-416 — Use After Free4 documents4 sources
Severity
6.1MEDIUMNVD
EPSS
0.5%
top 32.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Wpeverest Everest Forms
Timeline
PublishedApr 11

Description

The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'form_id' parameter in all versions up to, and including, 3.1.1 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages1 packages

Patches

Patch: plugins.trac.wordpress.org ↗

🔴Vulnerability Details

2
CVEList
Everest Forms <= 3.1.1 - Reflected Cross-Site Scripting↗2025-04-11
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GHSA
GHSA-h573-4qjm-8775: The Everest Forms – Contact Form, Quiz, Survey, Newsletter & Payment Form Builder for WordPress plugin for WordPress is vulnerable to Reflected Cross-↗2025-04-11
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📋Vendor Advisories

1
Microsoft
drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in cert↗2021-08-10
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CVE-2025-3421 — Cross-site Scripting in Everest Forms | cvebase