CVE-2025-69315

6.5 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the NSquared Simply Schedule Appointments WordPress plugin that allows attackers to bypass access controls. It affects all versions up to and including 1.6.9.15, potentially enabling unauthorized access to appointment management functions. WordPress sites using this plugin are affected.

💻 Affected Systems

Products:
  • NSquared Simply Schedule Appointments WordPress Plugin
Versions: All versions through 1.6.9.15
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the Simply Schedule Appointments plugin installed and activated.

⚠️ 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 manipulate appointments, access sensitive booking data, or disrupt scheduling operations for all users.

🟠

Likely Case

Unauthorized users could view or modify appointment details they shouldn't have access to, potentially exposing personal information or disrupting business operations.

🟢

If Mitigated

With proper access controls and authentication checks, impact would be limited to authorized users only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires some level of access but doesn't need admin privileges. Attackers with any user account could potentially escalate privileges.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.6.9.16 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/simply-schedule-appointments/vulnerability/wordpress-simply-schedule-appointments-plugin-1-6-9-15-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 'Simply Schedule Appointments'. 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 vulnerable plugin until patched

wp plugin deactivate simply-schedule-appointments

Restrict Access

all

Use web application firewall rules to restrict access to plugin endpoints

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate WordPress installation
  • Enable detailed logging and monitoring for unauthorized access attempts to appointment endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Simply Schedule Appointments → Version number

Check Version:

wp plugin get simply-schedule-appointments --field=version

Verify Fix Applied:

Verify plugin version is 1.6.9.16 or higher and test appointment management functions with non-admin users

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to /wp-admin/admin-ajax.php with 'action' parameters related to appointments
  • Unusual appointment modifications from non-admin users

Network Indicators:

  • HTTP requests to appointment-related endpoints from unauthorized IPs or users

SIEM Query:

source="wordpress.log" AND ("simply-schedule-appointments" OR "ssa_") AND ("admin-ajax" OR "wp-admin") AND NOT user_role="administrator"

🔗 References

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