CVE-2026-1947

NEX-Forms – Ultimate Forms Plugin for WordPress <= 9.1.9 - Missing Authorization to Unauthenticated Arbitrary Form Entry Modification via nf_set_entry_update_id

highAuthorization Bypass Through User-Controlled Key

7.5

CVSS Score

7.5

CVSS Score

high

Severity

9.1.10

Patched in

Time to patch

Description

The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 9.1.9 via the submit_nex_form() function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to to overwrite arbitrary form entries via the 'nf_set_entry_update_id' parameter.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

None

Confidentiality

High

Integrity

None

Availability

Technical Details

Affected versions<=9.1.9

PublishedMarch 14, 2026

Last updatedMarch 15, 2026

Affected pluginnex-forms-express-wp-form-builder

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/b2a8c307-2430-4ea9-afe0-e5e758eabdd1?source=api-prod

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