TI-2021-14930 Aliases CVE-2021-36821 GHSA-ppfv-9rmx-jjrq

WordPress Forminator plugin <= 1.14.11 - Stored Cross-Site Scripting (XSS) vulnerability

LOW 31CWE-79Published 2023-03-16 · Updated 2026-04-28

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WPMU DEV Forminator allows Stored XSS.This issue affects Forminator: from n/a through 1.14.11.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00406 35th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

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
wpmudev	Forminator	up to 1.14.11	—	No fix listed	CNA

Forminator Vendorwpmudev Affected up to 1.14.11 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:incsub:forminator::::::wordpress::*	before 1.14.12	Vulnerable	Incsub

cpe:2.3:a:incsub:forminator:*:*:*:*:*:wordpress:*:* Versions before 1.14.12 Vulnerable ·Incsub

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-36821
2026-10-03 Alias added: GHSA-ppfv-9rmx-jjrq

References

Advisory 1

https://patchstack.com/database/vulnerability/forminator/wordpress-forminator-plugin-1-14-11-stored-cross-site-scripting-xss-vulnerability?_s_id=cve

TI-2023-04240 Forminator <= 1.24.6 - Unauthenticated Arbitrary File Upload CVSS 3.1CRITICAL 9.8
TI-2023-04683 Defender Security < 4.1.0 - Protection Bypass (Hidden Login Page) CVSS 3.1MEDIUM 5.3
TI-2026-13248 Forminator Forms <= 1.56.1 - Unauthenticated Arbitrary File Upload via Forged Upload Field Configuration CVSS 3.1CRITICAL 9.8
TI-2025-05864 Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.44.2… CVSS 3.1HIGH 8.8
TI-2024-20466 SQL injection in wpmudev Forminator CVSS 3.1HIGH 7.2
TI-2024-07873 Hustle < 7.8.5 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8

See all 120 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences