CVE-2025-5803

8.8 HIGH

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the VikBooking Hotel Booking Engine & PMS WordPress plugin. It allows attackers to bypass access controls and perform unauthorized actions. All WordPress sites running VikBooking version 1.8.2 or earlier are affected.

💻 Affected Systems

Products:
  • VikBooking Hotel Booking Engine & PMS WordPress Plugin
Versions: All versions up to and including 1.8.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with the vulnerable plugin version, regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could gain administrative access to the booking system, modify reservations, access sensitive guest data (PII), or compromise the entire WordPress site.

🟠

Likely Case

Unauthorized users could view or modify booking information, access guest details, or manipulate booking system settings without proper authentication.

🟢

If Mitigated

With proper network segmentation and strict access controls, impact would be limited to the booking system functionality only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Missing authorization vulnerabilities typically require minimal technical skill to exploit once the vulnerability details are known.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.8.3 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/vikbooking/vulnerability/wordpress-vikbooking-hotel-booking-engine-pms-plugin-1-8-2-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find VikBooking plugin. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the VikBooking plugin until patched

wp plugin deactivate vikbooking

Restrict Access

all

Use web application firewall rules to restrict access to VikBooking endpoints

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the WordPress admin interface
  • Enable detailed logging and monitoring for unauthorized access attempts to VikBooking endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for VikBooking version

Check Version:

wp plugin get vikbooking --field=version

Verify Fix Applied:

Verify VikBooking plugin version is 1.8.3 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to VikBooking admin endpoints
  • Unusual booking modifications from unexpected IPs

Network Indicators:

  • HTTP requests to /wp-content/plugins/vikbooking/ with unauthorized parameters

SIEM Query:

source="wordpress.logs" AND (uri_path="/wp-content/plugins/vikbooking/" AND NOT user_role="administrator")

🔗 References

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