● Medium · CVSS 6.5

How to Fix CVE-2026-1487: Sql injection in LatePoint – Calendar Booking Plugin for Appointments and Events

Q: What is the CVSS score for CVE-2026-1487?

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

Q: Where is the official advisory for CVE-2026-1487?

The vendor advisory is at [https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bbd339-5eb7-4a62-9c68-bcd76507425c?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bbd339-5eb7-4a62-9c68-bcd76507425c?source=cve). The NVD record is at https://nvd.nist.gov/vuln/detail/CVE-2026-1487.

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

CVE-2026-1487 is a SQL injection in latepoint LatePoint – Calendar Booking Plugin for Appointments and Events. The fix is to apply the vendor patch noted below.

⚡ At a glance


Severity	6.5 (Medium)
Actively exploited?	No public listing in CISA KEV
Affected	LatePoint – Calendar Booking Plugin for Appointments and Events 0 to <=5.2.7
Fixed in	See vendor advisory
Type (CWE)	CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

What is CVE-2026-1487?

The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to SQL Injection via the JSON Import in all versions up to, and including, 5.2.7 due to insufficient validation on the user-supplied JSON data. This makes it possible for authenticated attackers, with Administrator-level access and above, to execute arbitrary SQL queries on the database that can be used to extract information via time-based techniques, drop tables, or modify data. The CVSS base score is 6.5 (Medium). The official advisory is at https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bbd339-5eb7-4a62-9c68-bcd76507425c?source=cve.

Am I affected?

Check the version of LatePoint – Calendar Booking Plugin for Appointments and Events you are running and compare it against the Affected row above (LatePoint – Calendar Booking Plugin for Appointments and Events 0 to <=5.2.7). If your build sits inside the affected range, you must patch.

Run the version check that fits your platform:


# Linux package check
dpkg -s latepoint-calendar-booking-plugin-for-appointments-and-events 2>/dev/null | grep -i ^Version
rpm -q latepoint-calendar-booking-plugin-for-appointments-and-events 2>/dev/null
command -v latepoint-calendar-booking-plugin-for-appointments-and-events >/dev/null && latepoint-calendar-booking-plugin-for-appointments-and-events --version 2>/dev/null


# Windows (PowerShell)
Get-Package -Name "*LatePoint – Calendar Booking Plugin for Appointments and Events*" -ErrorAction SilentlyContinue | Select-Object Name, Version
winget list --name "LatePoint – Calendar Booking Plugin for Appointments and Events" 2>$null

How to fix CVE-2026-1487

Upgrade LatePoint – Calendar Booking Plugin for Appointments and Events 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 latepoint-calendar-booking-plugin-for-appointments-and-events
dpkg -s latepoint-calendar-booking-plugin-for-appointments-and-events | grep -i ^Version

RHEL / CentOS / Rocky / AlmaLinux


sudo dnf upgrade --refresh latepoint-calendar-booking-plugin-for-appointments-and-events -y
# or for older releases:
sudo yum update latepoint-calendar-booking-plugin-for-appointments-and-events -y
rpm -q latepoint-calendar-booking-plugin-for-appointments-and-events

SUSE / openSUSE


sudo zypper refresh
sudo zypper update latepoint-calendar-booking-plugin-for-appointments-and-events
rpm -q latepoint-calendar-booking-plugin-for-appointments-and-events

PHP / Composer


composer update latepoint/latepoint-calendar-booking-plugin-for-appointments-and-events 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-2026-1487 affecting LatePoint – Calendar Booking Plugin for Appointments and Events
# Run as administrator. Detect -> backup -> upgrade -> verify -> log.

$ErrorActionPreference = "Stop"
$LogPath  = "C:\Logs\CVE-2026-1487-fix-$(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"
    $pkg = Get-Package -Name "*LatePoint – Calendar Booking Plugin for Appointments and Events*" -ErrorAction SilentlyContinue
    if ($pkg) { $pkg | Format-Table Name, Version }
    else { Write-Host "Not detected via Get-Package; try winget list" }

    Write-Host "[2/4] Backup configuration"
    $backup = "C:\Backup\latepoint-calendar-booking-plugin-for-appointments-and-events-$(Get-Date -Format yyyyMMdd)"
    New-Item -ItemType Directory -Force $backup | Out-Null
    Get-ChildItem "C:\ProgramData\LatePoint – Calendar Booking Plugin for Appointments and Events" -ErrorAction SilentlyContinue |
        Copy-Item -Destination $backup -Recurse -Force -ErrorAction SilentlyContinue

    Write-Host "[3/4] Apply the upgrade to See vendor advisory"
    winget upgrade --name "LatePoint – Calendar Booking Plugin for Appointments and Events" --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 "LatePoint – Calendar Booking Plugin for Appointments and Events"
    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-2026-1487 affecting LatePoint – Calendar Booking Plugin for Appointments and Events
# Detect -> backup -> upgrade -> verify -> log.

set -euo pipefail
LOG="/var/log/cve-2026-1487-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 latepoint-calendar-booking-plugin-for-appointments-and-events 2>/dev/null | grep -i ^Version || echo "latepoint-calendar-booking-plugin-for-appointments-and-events not installed via dpkg"
elif command -v rpm >/dev/null; then
    rpm -q latepoint-calendar-booking-plugin-for-appointments-and-events || echo "latepoint-calendar-booking-plugin-for-appointments-and-events not installed via rpm"
fi

echo "[2/4] Backup configuration"
BACKUP="/root/backup-cve-2026-1487-$(date +%Y%m%d)"
mkdir -p "$BACKUP"
for d in /etc/latepoint-calendar-booking-plugin-for-appointments-and-events /etc/latepoint-calendar-booking-plugin-for-appointments-and-events.d /etc/latepoint-calendar-booking-plugin-for-appointments-and-events.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 latepoint-calendar-booking-plugin-for-appointments-and-events
elif command -v dnf >/dev/null; then
    dnf upgrade --refresh -y latepoint-calendar-booking-plugin-for-appointments-and-events
elif command -v yum >/dev/null; then
    yum update -y latepoint-calendar-booking-plugin-for-appointments-and-events
elif command -v zypper >/dev/null; then
    zypper --non-interactive update latepoint-calendar-booking-plugin-for-appointments-and-events
fi

echo "[4/4] Verify the patched build"
if command -v dpkg >/dev/null; then
    dpkg -s latepoint-calendar-booking-plugin-for-appointments-and-events 2>/dev/null | grep -i ^Version
elif command -v rpm >/dev/null; then
    rpm -q latepoint-calendar-booking-plugin-for-appointments-and-events
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-2026-1487" -Direction Inbound -Action Block -Protocol TCP -LocalPort 80,443 -RemoteAddress Any -Enabled True
Get-NetFirewallRule -DisplayName "Block-CVE-2026-1487"

Disable the affected service (Linux)


sudo systemctl stop latepoint-calendar-booking-plugin-for-appointments-and-events 2>/dev/null || true
sudo systemctl disable latepoint-calendar-booking-plugin-for-appointments-and-events 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 latepoint-calendar-booking-plugin-for-appointments-and-events 2>/dev/null | grep -i ^Version
rpm -q latepoint-calendar-booking-plugin-for-appointments-and-events 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 "*LatePoint – Calendar Booking Plugin for Appointments and Events*" | 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-2026-32950: SQL Injection in SQLBot — SQL Injection in SQLBot
How to Fix CVE-2026-32600: CWE-354: Improper Validation of Integrity Check Value in xml-security — CWE-354: Improper Validation of Integrity Check Value in xml-security
How to Fix CVE-2026-34085: Out-of-Bounds Write in fontconfig , Out-of-Bounds Write in fontconfig
How to Fix CVE-2026-41882: CWE-59 in IntelliJ IDEA , CWE-59 in IntelliJ IDEA
How to Fix CVE-2026-24814: Critical Vulnerability in swoole-src , Critical Vulnerability in swoole-src

Is CVE-2026-1487 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-2026-1487?

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-2026-1487?

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

Where is the official advisory for CVE-2026-1487?

The vendor advisory is at https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bbd339-5eb7-4a62-9c68-bcd76507425c?source=cve. The NVD record is at https://nvd.nist.gov/vuln/detail/CVE-2026-1487.

References

Official vendor advisory: https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bbd339-5eb7-4a62-9c68-bcd76507425c?source=cve
NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1487
CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Additional reference: https://plugins.trac.wordpress.org/changeset/3463945/

*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.*