7.2

CVE-2021-36821: incsub forminator Cross-site Scripting

CVSS: 7.2v3.1HighModified
Published 16-03-2023Last modified 28-04-2026
Open JSON

Vulnerability summary

CVE-2021-36821 is a high (CVSS 7.2) Cross-site Scripting vulnerability in incsub forminator. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.3% of scored vulnerabilities. Fixed in 1.14.12.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v3.1 (wordfence)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-03-2023
    PublishedVulnerability first disclosed.
  2. 28-04-2026
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

0.00 pp

From 0.41% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Incsub1 product
Wordpress1 product
  • forminator< 1.14.12
Wpmu dev1 product

3 vendors · 3 products

References

2 links