Paper/Archive/CVE-2026-4882

CVE-2026-4882

WPEverest User Registration Advanced Fields — User Registration Advanced Fields <= 1.6.20 - Unauthenticated Arbitrary File Upload

EPSS 0.7%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 51.3.513 × 2010.3 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

The User Registration Advanced Fields plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'URAF_AJAX::method_upload' function in all versions up to, and including, 1.6.20. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability can only be exploited if a "Profile Picture" field is added to the form.

Affected

ProductAffectedFixed inSource

User Registration Advanced Fields≤ 1.6.20–CNA

Scores by source

Wordfence (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refwordfence.com/threat-intel/vulnerabilities/id/f2c6a377-216f-4d61-8fae-ec5bc2793cdf?source=cve refwpuserregistration.com/features/advanced-fields