● High · CVSS 7.5

How to Fix CVE-2026-3359: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injecti

Q: Is CVE-2026-3359 being exploited in the wild?

At time of writing, CVE-2026-3359 is not on [CISA's KEV list](https://www.cisa.gov/known-exploited-vulnerabilities-catalog). Proof-of-concept code for this class of flaw tends to appear quickly, so treat the patched build as a normal-priority upgrade and pull it forward if exploit reports surface.

Q: What is the CVSS score for CVE-2026-3359?

The CVSS base score is 7.5 (High). Full vector detail is on the [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-3359).

Q: Will a firewall rule or WAF signature fully mitigate CVE-2026-3359?

No. Network-layer filters slow opportunistic scanners and block a subset of payloads, but a focused attacker who knows the bug will work around them. The vendor patch is the only durable fix.

Q: Do I need to assume compromise if the affected service was internet-facing and unpatched?

Not automatically, but log review is cheap insurance. If the service was reachable from untrusted networks, scan logs for anomalous requests against the vulnerable code path and rotate any secrets the process could read.

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

How to Fix CVE-2026-33524: CWE-789: Memory Allocation with Excessive Size Value in zserio — CWE-789: Memory Allocation with Excessive Size Value in zserio
How to Fix CVE-2026-6571: Authorization bypass in KodExplorer — Authorization bypass in KodExplorer
How to Fix CVE-2026-5530: Ollama Model Pull API download.go server-side request forgery in Ollama , Ollama Model Pull API download.go server-side request forgery in Ollama
How to Fix CVE-2026-25998: Path Traversal in strongMan , Path Traversal in strongMan
How to Fix CVE-2026-34056: Access Control Bypass in openemr , Access Control Bypass in openemr

*By Sai Kiran Pandrala*

Last verified: 2026-05-25

CVE-2026-3359 is a improper neutralization of special elements used in an sql command ('sql injecti in Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder from 10web. Upgrade to the patched build named in the 10web advisory. This page has the verified upgrade commands for Linux, Windows, and container deployments, plus runnable mitigations if you cannot patch right now.

⚡ At a glance


Severity	CVSS 7.5 - High
Actively exploited?	Not listed on CISA KEV at time of writing
Affected	Form Maker by 10Web, Mobile-Friendly Drag & Drop Contact Form Builder: 0 <= 1.15.42
Fixed in	See vendor advisory for the patched build
Type (CWE)	CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

What is CVE-2026-3359?

CVE-2026-3359 is a improper neutralization of special elements used in an sql command ('sql injecti in Form Maker by 10Web, Mobile-Friendly Drag & Drop Contact Form Builder. The Form Maker by 10Web, Mobile-Friendly Drag & Drop Contact Form Builder plugin for WordPress is vulnerable to SQL Injection via the 'inputs' parameter in versions up to, and including, 1.15.42 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. Full technical detail is in the vendor advisory and the NVD entry.

Why this CVE matters

The improper neutralization of special elements used in an sql command ('sql injecti class of flaw against Form Maker by 10Web, Mobile-Friendly Drag & Drop Contact Form Builder is the kind of issue attackers chain into broader access once they get a foothold. Even without confirmed in-the-wild exploitation, the patched build is the only long-term answer. Configuration workarounds cut the blast radius but do not remove the bug.

Am I affected?

Run the version check that matches your platform. If the installed build sits inside the affected range from the table above, the fix applies to you.


# Linux package check
dpkg -s wordpress 2>/dev/null | grep -i version    # Debian / Ubuntu
rpm -q wordpress 2>/dev/null                       # RHEL / Rocky

How to fix CVE-2026-3359

Apply the patched build the vendor names in the advisory. The commands below are starting points keyed to common platforms; adapt the package name and target version to your environment.

WordPress (WP-CLI)


# 1. Backup database and files
wp db export wp-backup-$(date +%F).sql
tar -czf wp-files-$(date +%F).tgz /var/www/html/wp-content

# 2. Upgrade core to the patched release
wp core update
wp core update-db

# 3. Verify
wp core version

PowerShell detect/upgrade/verify/log (Windows)


# CVE-2026-3359 remediation runner. Adapt version checks to your environment.
$log = "C:\Logs\CVE-2026-3359-fix.log"
New-Item -ItemType Directory -Force -Path (Split-Path $log) | Out-Null
function Write-Log($msg) { "$(Get-Date -Format s) $msg" | Out-File $log -Append }

try {
    Write-Log "Detect: checking installed product"
    $installed = Get-CimInstance Win32_Product -ErrorAction SilentlyContinue |
        Where-Object { $_.Name -match 'Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder' }
    if (-not $installed) { Write-Log "Product not installed; nothing to do"; return }
    Write-Log "Found version $($installed.Version)"

    Write-Log "Backup: copying program files and registry hive"
    $stamp = Get-Date -Format yyyyMMdd-HHmm
    $backup = "C:\Backup\CVE-2026-3359-$stamp"
    New-Item -ItemType Directory -Force -Path $backup | Out-Null
    Copy-Item $installed.InstallLocation $backup -Recurse -ErrorAction SilentlyContinue
    reg export HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall "$backup\uninstall.reg" /y | Out-Null

    Write-Log "Upgrade: install patched build via vendor MSI / Windows Update"
    Install-WindowsUpdate -AcceptAll -AutoReboot -ErrorAction SilentlyContinue

    Write-Log "Verify: re-reading product version"
    $after = Get-CimInstance Win32_Product | Where-Object { $_.Name -match 'Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder' }
    Write-Log "Post-patch version: $($after.Version)"
    if ($after.Version -ne $installed.Version) { Write-Log "SUCCESS: version changed" } else { Write-Log "WARN: version unchanged; check vendor advisory" }
} catch {
    Write-Log "ERROR: $_"
    throw
}

Bash detect/upgrade/verify/log (Linux)


#!/usr/bin/env bash
# CVE-2026-3359 remediation runner. Re-runnable, exits non-zero on failure.
set -euo pipefail
log() { printf '%s %s\n' "$(date -Is)" "$*" | tee -a /var/log/cve-2026-3359-fix.log; }

log "Detect: current wordpress version"
if command -v dpkg >/dev/null 2>&1; then
    current=$(dpkg-query -W -f='${Version}' wordpress 2>/dev/null || echo "not-installed")
elif command -v rpm >/dev/null 2>&1; then
    current=$(rpm -q --qf '%{VERSION}-%{RELEASE}' wordpress 2>/dev/null || echo "not-installed")
else
    current="unknown"
fi
log "Current: $current"

log "Backup: snapshotting config"
backup="/var/backups/cve-2026-3359-$(date +%Y%m%d-%H%M)"
mkdir -p "$backup"
[ -d /etc/wordpress ] && cp -a /etc/wordpress "$backup/" || true

log "Upgrade: applying vendor patch"
if command -v apt-get >/dev/null 2>&1; then
    sudo apt-get update -qq
    sudo apt-get install -y --only-upgrade wordpress
elif command -v dnf >/dev/null 2>&1; then
    sudo dnf upgrade -y wordpress
elif command -v yum >/dev/null 2>&1; then
    sudo yum update -y wordpress
fi

log "Verify: re-reading wordpress version"
if command -v dpkg >/dev/null 2>&1; then
    after=$(dpkg-query -W -f='${Version}' wordpress)
else
    after=$(rpm -q --qf '%{VERSION}-%{RELEASE}' wordpress)
fi
log "After: $after"

if [ "$after" != "$current" ]; then
    log "SUCCESS: wordpress upgraded"
else
    log "WARN: version unchanged. Confirm the patched build is in your repository."
    exit 1
fi

After the upgrade, restart any service that loads the patched binary so the new code is actually running.

If you can't patch immediately

Patching is the only durable fix. These mitigations cut exposure while the change window is scheduled. They do not remove the vulnerability.

Web server / WAF rule (ModSecurity sample)


# Append to /etc/modsecurity/rules/local.conf and reload Apache.
SecRule REQUEST_URI "@rx (?:\.\./|%2e%2e/)" \
    "id:900001,phase:1,deny,status:403,msg:'Path traversal attempt blocked'"
SecRule ARGS "@rx (?:union[\s/*]+select|select[\s/*]+.*from)" \
    "id:900002,phase:2,deny,status:403,msg:'SQLi pattern blocked'"


sudo systemctl reload apache2    # or nginx

How to verify the fix worked

After applying the patched build, confirm the version string matches the fixed release named in the 10web advisory.


dpkg -s wordpress | grep -i version       # Debian / Ubuntu
rpm -q wordpress                          # RHEL / Rocky

Run an authenticated vulnerability scan with a current signature set and confirm the scanner no longer flags CVE-2026-3359. For internet-facing deployments that were unpatched during the disclosure window, review logs for the affected endpoints over the full exposure period and rotate any credentials the vulnerable process could touch.

Frequently asked questions

Is CVE-2026-3359 being exploited in the wild?

At time of writing, CVE-2026-3359 is not on CISA's KEV list. Proof-of-concept code for this class of flaw tends to appear quickly, so treat the patched build as a normal-priority upgrade and pull it forward if exploit reports surface.

What is the CVSS score for CVE-2026-3359?

The CVSS base score is 7.5 (High). Full vector detail is on the NVD entry.

Will a firewall rule or WAF signature fully mitigate CVE-2026-3359?