How to Fix CVE-2026-4659: Path traversal in Unlimited Elements For Elementor
By Sai Kiran Pandrala. Last verified: 2026-05-25.
| Severity | 7.5 (High) |
|---|---|
| Actively exploited? | No public listing in CISA KEV |
| Affected | unitecms Unlimited Elements For Elementor 0 to <2.0.6 |
| Fixed in | Unlimited Elements For Elementor 2.0.6 |
| Type (CWE) | CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') |
What is CVE-2026-4659?
The Unlimited Elements for Elementor plugin for WordPress is vulnerable to Arbitrary File Read via the Repeater JSON/CSV URL parameter in versions up to, and including, 2.0.6. This is due to insufficient path traversal sanitization in the URLtoRelative() and urlToPath() functions, combined with the ability to enable debug output in widget settings. The URLtoRelative() function only performs a simple string replacement to remove the site's base URL without sanitizing path traversal sequences (../), and the cleanPath() function only normalizes directory separators without removing traversal components. This allows an attacker to provide a URL like http://site.com/../../../../etc/passwd which, after URLtoRelative() strips the domain, results in /../../../../etc/passwd being concatenated with the base path and ultimately resolved to /etc/passwd.
Am I affected?
Run the version check that matches your platform:
# Linux
dpkg -s wordpress 2>/dev/null | grep -i version
rpm -q wordpress 2>/dev/null
wordpress --version 2>/dev/null
# Windows
winget list | findstr /I "wordpress"
Get-WmiObject Win32_Product | Where-Object { $_.Name -like "*Unlimited Elements For Elementor*" } | Select-Object Name, Version
Compare what you see against the Affected row above (unitecms Unlimited Elements For Elementor 0 to <2.0.6). If your build sits inside that range, you are exposed and should patch.
How to fix CVE-2026-4659
The primary fix is to upgrade Unlimited Elements For Elementor to the patched build. Use the commands for your platform below; the patched version listed in the vendor advisory is: Unlimited Elements For Elementor 2.0.6.
Ubuntu / Debian
sudo apt-get update
sudo apt-get install --only-upgrade wordpress
wordpress --version 2>/dev/null || dpkg -s wordpress | grep -i version
RHEL / CentOS / Rocky / AlmaLinux
sudo dnf upgrade --security wordpress -y
rpm -q wordpress
SUSE / openSUSE
sudo zypper patch --category security
rpm -q wordpress
Windows (PowerShell, run as administrator)
# Check installed version
Get-HotFix | Sort-Object InstalledOn -Descending | Select-Object -First 5
# Apply latest Microsoft security updates (Windows Update)
Install-Module -Name PSWindowsUpdate -Force -SkipPublisherCheck
Import-Module PSWindowsUpdate
Get-WindowsUpdate -MicrosoftUpdate
Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -AutoReboot
# Or via winget for application-level patches
winget upgrade --all --accept-source-agreements --accept-package-agreements
If the affected component is a third-party application, identify the package and run:
winget upgrade --id <vendor.product>
Replace <vendor.product> with the actual winget identifier (run winget search WordPress to find it).
Complete PowerShell remediation script (Windows)
# Fix script for CVE-2026-4659 affecting WordPress
# Run as administrator. Detect -> backup -> upgrade -> verify -> log.
$ErrorActionPreference = "Stop"
$LogPath = "C:\Logs\CVE-2026-4659-fix-$(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] Detecting installed version of WordPress"
$pkg = winget list --id "WordPress" 2>$null
Write-Host $pkg
Write-Host "[2/4] Backing up configuration"
$backup = "C:\Backup\WordPress-$(Get-Date -Format yyyyMMdd)"
New-Item -ItemType Directory -Force $backup | Out-Null
Get-ChildItem "C:\ProgramData\WordPress" -ErrorAction SilentlyContinue |
Copy-Item -Destination $backup -Recurse -Force -ErrorAction SilentlyContinue
Write-Host "[3/4] Applying upgrade to Unlimited Elements For Elementor 2.0.6"
winget upgrade --id "WordPress" --silent --accept-source-agreements --accept-package-agreements
# Fallback: Windows Update for OS-level fixes
if ($LASTEXITCODE -ne 0) {
Install-Module -Name PSWindowsUpdate -Force -SkipPublisherCheck -ErrorAction SilentlyContinue
Import-Module PSWindowsUpdate
Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -IgnoreReboot
}
Write-Host "[4/4] Verifying patched build"
winget list --id "WordPress"
Write-Host "Fix applied. Reboot if prompted."
exit 0
} catch {
Write-Error "Patch failed: $_"
exit 1
} finally {
Stop-Transcript
}
Complete Bash remediation script (Linux)
#!/usr/bin/env bash
# Fix script for CVE-2026-4659 affecting WordPress
# Detect -> backup -> upgrade -> verify -> log.
set -euo pipefail
LOG="/var/log/cve-2026-4659-fix-$(date +%Y%m%d-%H%M%S).log"
exec > >(tee -a "$LOG") 2>&1
echo "[1/4] Detecting installed version"
if command -v dpkg >/dev/null; then
dpkg -s wordpress 2>/dev/null | grep -i version || echo "wordpress not installed via dpkg"
elif command -v rpm >/dev/null; then
rpm -q wordpress || echo "wordpress not installed via rpm"
fi
echo "[2/4] Backing up configuration"
BACKUP="/root/backup-cve-2026-4659-$(date +%Y%m%d)"
mkdir -p "$BACKUP"
for d in /etc/wordpress /etc/wordpress.d /etc/wordpress.conf; do
[ -e "$d" ] && cp -a "$d" "$BACKUP/" || true
done
echo "[3/4] Applying upgrade (target: Unlimited Elements For Elementor 2.0.6)"
if command -v apt-get >/dev/null; then
apt-get update
apt-get install --only-upgrade -y wordpress
elif command -v dnf >/dev/null; then
dnf upgrade --security -y wordpress
elif command -v yum >/dev/null; then
yum update -y wordpress
elif command -v zypper >/dev/null; then
zypper --non-interactive patch --category security
fi
echo "[4/4] Verifying patched build"
if command -v dpkg >/dev/null; then
dpkg -s wordpress 2>/dev/null | grep -i version
elif command -v rpm >/dev/null; then
rpm -q wordpress
fi
echo "Done. Restart any running daemons that loaded the old library."
If you can't patch immediately
If you cannot apply the patched version today, restrict exposure with one of the following runnable controls. None replace the patch.
Network restriction (Linux, nftables)
# Block inbound traffic to the affected service from untrusted networks
sudo nft add table inet filter
sudo nft 'add chain inet filter input { type filter hook input priority 0 ; }'
sudo nft 'add rule inet filter input tcp dport {443, 80} ip saddr != 10.0.0.0/8 drop'
sudo nft list ruleset
Windows firewall isolation
# Allow only management subnet to reach the vulnerable service
New-NetFirewallRule -DisplayName "Restrict Unlimited Elements For Elementor" `
-Direction Inbound -Action Block -RemoteAddress Any `
-Protocol TCP -LocalPort 443
New-NetFirewallRule -DisplayName "Allow Mgmt Unlimited Elements For Elementor" `
-Direction Inbound -Action Allow -RemoteAddress 10.0.0.0/8 `
-Protocol TCP -LocalPort 443
Service-level fallback
# If the affected feature is optional, stop the service until the patch is applied
sudo systemctl stop wordpress
sudo systemctl disable wordpress
How to verify the fix worked
# Linux
wordpress --version 2>/dev/null || dpkg -s wordpress | grep -i version
rpm -q wordpress 2>/dev/null || true
# Windows
winget list | findstr /I "wordpress"
Get-HotFix | Sort-Object InstalledOn -Descending | Select-Object -First 5
Expected: the reported version is at or above Unlimited Elements For Elementor 2.0.6. Restart any services that loaded the old library (systemctl restart <service> on Linux, restart the Windows service or reboot when prompted). For network appliances, run show version on the device and confirm the build matches the patched release.
Frequently asked questions
Related fixes
Other vulnerabilities in the same area that are worth patching alongside this one:
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- How to Fix CVE-2026-39846: siyuan (Bundle Sibling) — siyuan (Bundle Sibling)
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Is CVE-2026-4659 actually being exploited?
According to the data sources above, no public confirmation of in-the-wild exploitation at this time. Either way, the fix is the same: apply the vendor patch.
Do I need to reboot after patching?
For OS or kernel updates, yes. For most userland packages a systemctl restart <service> is enough. Any process that loaded the old shared library keeps using it until restarted, so when in doubt, reboot.
What is the CVSS score?
7.5 (high). Refer to the vendor advisory for the exact vector string.
Where is the official advisory?
See the References section at the bottom of this page; the vendor's URL is the authoritative source for affected builds and patched versions.
References
- Official vendor advisory: https://www.wordfence.com/threat-intel/vulnerabilities/id/9e7e3763-4606-4fc4-aa0f-b67e6087bdc2?source=cve
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4659
- https://plugins.trac.wordpress.org/browser/unlimited-elements-for-elementor/trunk/inc_php/unitecreator_operations.class.php#L710
- https://plugins.trac.wordpress.org/browser/unlimited-elements-for-elementor/tags/2.0.6/inc_php/unitecreator_operations.class.php#L710
- https://plugins.trac.wordpress.org/browser/unlimited-elements-for-elementor/trunk/inc_php/unitecreator_helper.class.php#L667
- https://plugins.trac.wordpress.org/browser/unlimited-elements-for-elementor/tags/2.0.6/inc_php/unitecreator_helper.class.php#L667
*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.*