---
id: CVE-2026-115277
title: WP User Frontend < 4.3.14 - Reflected XSS via 'field_attr' Parameter
summary: >-
  The User Frontend  WordPress plugin before 4.3.14 does not sanitise and escape
  some user-supplied values before reflecting them into HTML attributes in a
  publicly reachable AJAX response, leading to Reflected Cross-Site Scripting.
  The af…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N'
cvssSource: adp
cwe:
  - CWE-79
product: User Frontend
affected:
  - user_frontend < 4.3.14
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-30T13:18:13.926399Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T13:26:47.565Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115277'
references:
  - url: 'https://wpscan.com/vulnerability/b3f0ca09-1c63-4a34-90bf-7b220fcec556/'
tags:
  - cve.org
epss: 0.00175
epssPercentile: 0.06986
ingestedAt: '2026-11-05T16:07:30.265Z'
---

## Overview

The User Frontend  WordPress plugin before 4.3.14 does not sanitise and escape some user-supplied values before reflecting them into HTML attributes in a publicly reachable AJAX response, leading to Reflected Cross-Site Scripting. The affected action is gated by an anonymous nonce that only validates for logged-out requests, so the payload executes against logged-out visitors rather than authenticated users.

## Affected

- `user_frontend < 4.3.14`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.