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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.

PUBLISHED Reserved 2026-02-05 | Published 2026-03-15 | Updated 2026-04-08 | Assigner Wordfence




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

Default status
unaffected

Any version
affected

Timeline

2026-02-05:Vendor Notified
2026-03-14:Disclosed

Credits

Youssef Elouaer finder

References

www.wordfence.com/...-2430-4ea9-afe0-e5e758eabdd1?source=cve

plugins.trac.wordpress.org/...-forms-express-wp-form-builder

cve.org (CVE-2026-1947)

nvd.nist.gov (CVE-2026-1947)

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