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CVE-2026-4882

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

Published: May 2, 2026Updated: May 5, 2026 Sources: CVE List NVDCWE-434
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.7%
Top 53.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-434

Affected Products

User Registration Advanced FieldsWPEverest
On-prem
Web & CMS Plugins / wordpress-plugin
wpeverestcommercialWeb & CMS Pluginsaka wpeverest, everest forms, everest forms membership

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/f2c6a377-216f-4d61-8fae-ec5bc2793cdf?source=cve
wordfence.com
https://wpuserregistration.com/features/advanced-fields/
wpuserregistration.com

Timeline

Published
May 2, 2026
Last Updated
May 5, 2026
News mentions
1

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