CVE-2021-36821: WordPress Forminator plugin <= 1.14.11 - Stored Cross-Site Scripting (XSS) vulnerability

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-03-16 · updated 2026-06-17
Weakness: CWE-79

Description

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.

Affected products

WPMU DEV Forminator: before 1.14.12 — fixed in 1.14.12

How to fix

Upgrade to a fixed version: WPMU DEV Forminator 1.14.12. Check the vendor advisory for mitigations.

References

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

Get alerted when CVE-2021-36821 or the next vulnerability affects your stack