Everest Forms <= 3.1.1 - Reflected Cross-Site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| wpeverest | Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder | up to 3.1.1 | — | No fix listed | CNA |
- Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder Vendorwpeverest Affected up to 3.1.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-3421
- 2026-10-03 Alias added: GHSA-h573-4qjm-8775
References
More wpeverest Everest Forms vulnerabilities
- TI-2025-00958 Everest Forms <= 3.0.9.4 - Unauthenticated Arbitrary File Upload, Read, and Deletion CVSS 3.1CRITICAL 9.8
- TI-2024-07919 Everest Forms < 3.0.3.1 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2025-03022 Deserialization of untrusted data in wpeverest Everest Forms – Contact Form, Payment… CVSS 3.1CRITICAL 9.8
- TI-2024-12173 Everest Forms < 3.0.8.1 - Admin+ Stored XSS CVSS 3.1LOW 3.5
- TI-2019-10207 A SQL injection vulnerability exists in WPEverest Everest Forms plugin for WordPress… CVSS 3.1CRITICAL 9.8
- TI-2025-05353 Everest Forms (Pro) <= 1.9.4 - Unauthenticated Path Traversal to Arbitrary File Deletion CVSS 3.1HIGH 7.5
Sources
- CVE-2025-3421 · CVE Program
- CVE-2025-3421 · NVD
- FIRST EPSS
- GHSA-h573-4qjm-8775 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences