CVE-2021-36827
WordPress Ninja Forms Contact Form plugin <= 3.6.9 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Saturday Drive's Ninja Forms Contact Form plugin <= 3.6.9 at WordPress via "label".
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
WordPress Ninja Forms Contact Form plugin <= 3.6.9 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Saturday Drive's Ninja Forms Contact Form plugin <= 3.6.9 at WordPress via "label".
- Record
CVE-2021-36827- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-23403
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Saturday Drive's Ninja Forms Contact Form plugin <= 3.6.9 at WordPress via "label".
- Record
EUVD-2021-23403- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-f2h8-cw2w-qx44
Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in...
Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in Saturday Drive's Ninja Forms Contact Form plugin <= 3.6.9 at WordPress via "label".
- Record
GHSA-f2h8-cw2w-qx44- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Saturday Drive's Ninja Forms Contact Form plugin <= 3.6.9 at WordPress via "label".
- Record
CVE-2021-36827- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-36827 is a medium vulnerability (CVSS 4.8) in Ninjaforms Ninja Forms, published June 16, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. No source names a fixed version.
References
patchstack.com/database/vulnerability/ninja-forms/wordpress-ninja-forms-contact-form-plugin-3-6-9-authenticated-stored-cross-site-scripting-xss-vulnerability?_s_id=cve
nvd.nist.gov/vuln/detail/CVE-2021-36827
wordpress.org/plugins/ninja-forms
github.com/advisories/GHSA-f2h8-cw2w-qx44