What is CVE-2021-36827?

CVE-2021-36827 is a medium-severity vulnerability in Ninjaforms Ninja Forms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-06-16.

How severe is CVE-2021-36827?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2021-36827 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Ninjaforms Ninja Forms

CVE-2021-36827

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Saturday Drive's Ninja Forms Contact Form plugin <= 3.6.9 at WordPress via "label".

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (39.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Ninjaforms Ninja_forms
Saturday Drive Ninja Forms Contact Form (Wordpress Plugin) — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2021-36827?: CVE-2021-36827 is a medium-severity vulnerability in Ninjaforms Ninja Forms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-06-16.
How severe is CVE-2021-36827?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-36827 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.