● High · CVSS 8.8

How to Fix CVE-2026-1565: Unrestricted file upload in User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration

Q: What is the CVSS score for CVE-2026-1565?

8.8 (High). Vector: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`.

Q: Where is the official advisory for CVE-2026-1565?

The vendor advisory is at [https://www.wordfence.com/threat-intel/vulnerabilities/id/2c358cbe-7600-43a1-94a3-1530cdb5a9f3?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/2c358cbe-7600-43a1-94a3-1530cdb5a9f3?source=cve). The NVD record is at https://nvd.nist.gov/vuln/detail/CVE-2026-1565.

By Sai Kiran Pandrala. Last verified: 2026-05-25.

CVE-2026-1565 is a unrestricted file upload in wedevs User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration. The fix is to apply the vendor patch noted below.

⚡ At a glance


Severity	8.8 (High)
Actively exploited?	No public listing in CISA KEV
Affected	User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration 0 to <=4.2.8
Fixed in	See vendor advisory
Type (CWE)	CWE-434 Unrestricted Upload of File with Dangerous Type

What is CVE-2026-1565?

The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'WPUF_Admin_Settings::check_filetype_and_ext' function and in the 'Admin_Tools::check_filetype_and_ext' function in all versions up to, and including, 4.2.8. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The CVSS base score is 8.8 (High), which puts this in the upper risk band and warrants a fast patch cycle. The official advisory is at https://www.wordfence.com/threat-intel/vulnerabilities/id/2c358cbe-7600-43a1-94a3-1530cdb5a9f3?source=cve.

Am I affected?

Check the version of User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration you are running and compare it against the Affected row above (User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration 0 to <=4.2.8). If your build sits inside the affected range, you must patch.

Run the version check that fits your platform:


# Linux package check
dpkg -s user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null | grep -i ^Version
rpm -q user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null
command -v user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration >/dev/null && user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration --version 2>/dev/null


# Windows (PowerShell)
Get-Package -Name "*User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration*" -ErrorAction SilentlyContinue | Select-Object Name, Version
winget list --name "User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration" 2>$null

How to fix CVE-2026-1565

Upgrade User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration to a patched build: See vendor advisory. The vendor advisory is the source of truth for the exact fixed version.

Ubuntu / Debian


sudo apt-get update
sudo apt-get install --only-upgrade user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration
dpkg -s user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration | grep -i ^Version

RHEL / CentOS / Rocky / AlmaLinux


sudo dnf upgrade --refresh user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration -y
# or for older releases:
sudo yum update user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration -y
rpm -q user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration

SUSE / openSUSE


sudo zypper refresh
sudo zypper update user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration
rpm -q user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration

PHP / Composer


composer update wedevs/user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null || composer update
composer show | head -20

WordPress


# Update via WP-CLI
wp plugin update --all
wp core update

Complete PowerShell remediation script (Windows)


# Fix script for CVE-2026-1565 affecting User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration
# Run as administrator. Detect -> backup -> upgrade -> verify -> log.

$ErrorActionPreference = "Stop"
$LogPath  = "C:\Logs\CVE-2026-1565-fix-$(Get-Date -Format yyyyMMdd-HHmmss).log"
New-Item -ItemType Directory -Force (Split-Path $LogPath) | Out-Null
Start-Transcript -Path $LogPath -Append

try {
    Write-Host "[1/4] Detect installed version"
    $pkg = Get-Package -Name "*User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration*" -ErrorAction SilentlyContinue
    if ($pkg) { $pkg | Format-Table Name, Version }
    else { Write-Host "Not detected via Get-Package; try winget list" }

    Write-Host "[2/4] Backup configuration"
    $backup = "C:\Backup\user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration-$(Get-Date -Format yyyyMMdd)"
    New-Item -ItemType Directory -Force $backup | Out-Null
    Get-ChildItem "C:\ProgramData\User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration" -ErrorAction SilentlyContinue |
        Copy-Item -Destination $backup -Recurse -Force -ErrorAction SilentlyContinue

    Write-Host "[3/4] Apply the upgrade to See vendor advisory"
    winget upgrade --name "User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration" --silent --accept-source-agreements --accept-package-agreements
    if ($LASTEXITCODE -ne 0) {
        # Fallback: pull latest via OS update channel
        Install-Module -Name PSWindowsUpdate -Force -SkipPublisherCheck -ErrorAction SilentlyContinue
        Import-Module PSWindowsUpdate
        Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -IgnoreReboot
    }

    Write-Host "[4/4] Verify the patched build"
    winget list --name "User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration"
    Write-Host "Patch applied. Reboot if prompted."
    exit 0
} catch {
    Write-Error "Patch failed: $_"
    exit 1
} finally {
    Stop-Transcript
}

Complete Bash remediation script (Linux)


#!/usr/bin/env bash
# Fix script for CVE-2026-1565 affecting User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration
# Detect -> backup -> upgrade -> verify -> log.

set -euo pipefail
LOG="/var/log/cve-2026-1565-fix-$(date +%Y%m%d-%H%M%S).log"
exec > >(tee -a "$LOG") 2>&1

echo "[1/4] Detect installed version"
if command -v dpkg >/dev/null; then
    dpkg -s user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null | grep -i ^Version || echo "user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration not installed via dpkg"
elif command -v rpm >/dev/null; then
    rpm -q user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration || echo "user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration not installed via rpm"
fi

echo "[2/4] Backup configuration"
BACKUP="/root/backup-cve-2026-1565-$(date +%Y%m%d)"
mkdir -p "$BACKUP"
for d in /etc/user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration /etc/user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration.d /etc/user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration.conf; do
    [ -e "$d" ] && cp -a "$d" "$BACKUP/" || true
done

echo "[3/4] Apply the upgrade (target: See vendor advisory)"
if command -v apt-get >/dev/null; then
    apt-get update
    apt-get install --only-upgrade -y user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration
elif command -v dnf >/dev/null; then
    dnf upgrade --refresh -y user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration
elif command -v yum >/dev/null; then
    yum update -y user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration
elif command -v zypper >/dev/null; then
    zypper --non-interactive update user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration
fi

echo "[4/4] Verify the patched build"
if command -v dpkg >/dev/null; then
    dpkg -s user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null | grep -i ^Version
elif command -v rpm >/dev/null; then
    rpm -q user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration
fi
echo "Done. Restart any service that loaded the old library."

If you can't patch immediately

Apply at least one of the following inline controls until you can deploy the patched build. None replace the upgrade.

Restrict exposure with nftables (Linux)


# Allow only trusted CIDR to reach the affected service ports
sudo nft add table inet filter 2>/dev/null || true
sudo nft 'add chain inet filter input { type filter hook input priority 0 ; }' 2>/dev/null || true
sudo nft 'add rule inet filter input tcp dport {80, 443} ip saddr != 10.0.0.0/8 drop'
sudo nft list ruleset

Block at the host firewall (Windows)


New-NetFirewallRule -DisplayName "Block-CVE-2026-1565" -Direction Inbound -Action Block -Protocol TCP -LocalPort 80,443 -RemoteAddress Any -Enabled True
Get-NetFirewallRule -DisplayName "Block-CVE-2026-1565"

Disable the affected service (Linux)


sudo systemctl stop user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null || true
sudo systemctl disable user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null || true

If the vendor advisory lists an official workaround, prefer that wording verbatim. If no workaround is published, the only safe remediation is the patch.

How to verify the fix worked

After upgrading, confirm the installed version matches the patched build and that no old library is still loaded by a long-running process.


# Linux
dpkg -s user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null | grep -i ^Version
rpm -q user-frontend-ai-powered-frontend-posting-user-directory-profile-membership-user-registration 2>/dev/null || true
# Pid map check for old library handles
sudo lsof +c0 2>/dev/null | grep -i "DEL.*lib" || true


# Windows
Get-Package -Name "*User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration*" | Select-Object Name, Version
Get-HotFix | Sort-Object InstalledOn -Descending | Select-Object -First 5

Expected: the reported version is at or above See vendor advisory. Restart the affected service (systemctl restart <service> on Linux, or restart the Windows service) so it loads the patched binary.

Frequently asked questions

Other vulnerabilities in the same area that are worth patching alongside this one:

How to Fix CVE-2026-40118: Incorrectly specified destination in a communication in UDP Console — Incorrectly specified destination in a communication in UDP Console
How to Fix CVE-2026-0787: Command Injection in 8180 IP Audio Alerter — Command Injection in 8180 IP Audio Alerter
How to Fix CVE-2026-30939: CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') , CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
How to Fix CVE-2026-7203: OS Command Injection in A8000RU , OS Command Injection in A8000RU
How to Fix CVE-2026-44695: Cross-Site Request Forgery (CSRF) in outline , Cross-Site Request Forgery (CSRF) in outline

Is CVE-2026-1565 actively exploited?

There is no public confirmation of exploitation in the wild listed in CISA KEV at the time of this writing. Patch anyway. Public exploits commonly follow disclosure within weeks.

Do I need to reboot after patching CVE-2026-1565?

For kernel and OS-level updates, yes. For most userland packages a systemctl restart <service> is enough on Linux, and restarting the Windows service or app on Windows. Any process that loaded the old library keeps using it until restarted.

What is the CVSS score for CVE-2026-1565?

8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Where is the official advisory for CVE-2026-1565?

The vendor advisory is at https://www.wordfence.com/threat-intel/vulnerabilities/id/2c358cbe-7600-43a1-94a3-1530cdb5a9f3?source=cve. The NVD record is at https://nvd.nist.gov/vuln/detail/CVE-2026-1565.

References

Official vendor advisory: https://www.wordfence.com/threat-intel/vulnerabilities/id/2c358cbe-7600-43a1-94a3-1530cdb5a9f3?source=cve
NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1565
CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Additional reference: https://plugins.trac.wordpress.org/browser/wp-user-frontend/trunk/admin/class-admin-settings.php?rev=3448772#L600
Additional reference: https://plugins.trac.wordpress.org/browser/wp-user-frontend/trunk/admin/class-admin-settings.php?rev=3448772#L571
Additional reference: https://plugins.trac.wordpress.org/browser/wp-user-frontend/trunk/includes/Admin/Admin_Tools.php?rev=3448772#L444

*Written by Sai Kiran Pandrala. Assembled from the official vendor advisory, NVD record, and CISA KEV listing on 2026-05-25. Always confirm against the vendor's advisory before applying changes in production.*