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Vulnerability record · CVE-2021-36821 · published 16 March 2023

CVE-2021-36821: Incsub forminator cross-site scripting vulnerability

Incsub · Forminator

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.

6.1 CVSS 3.1 Medium EPSS 0.41% · top 67.5% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://patchstack.com/database/vulnerability/forminator/wordpress-forminator-plugin-1-14-11-stored-cross-site-scripting Third Party Advisory
https://patchstack.com/database/vulnerability/forminator/wordpress-forminator-plugin-1-14-11-stored-cross-site-scripting Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-36821), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.