CVE-2021-34647Public exploitNetwork attack vector

Submission data disclosure via login-only REST permission check

Published Sep 22, 2021 · Updated Mar 31, 2025

Incorrect authorization in Ninja Forms 3.5.7 and earlier allows remote authenticated users to export all stored form submissions. The bulk_export_submissions REST route uses a permissions_callback that checks only is_user_logged_in() and never verifies an export capability. Any logged-in WordPress account is sufficient, and a successful request exposes every stored submission, including configured PII fields.

CVSS severity6.5
Medium
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Ninja Forms 3.5.7 and earlier allows remote authenticated users to export all stored form submissions. The bulk_export_submissions REST route uses a permissions_callback that checks only is_user_logged_in() and never verifies an export capability. Any logged-in WordPress account is sufficient, and a successful request exposes every stored submission, including configured PII fields.

The record

CVE
CVE-2021-34647
Published
Sep 22, 2021
Updated
Mar 31, 2025
Vendor
Saturday Drive
Product
Ninja Forms
Classifications
CWE-862, CWE-863, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Mar 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.5.7 <=3.5.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Saturday Drive · Ninja Formsversion=3.5.7 <=3.5.7

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-863Incorrect Authorization
T1213Data from Information Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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