CVE-2025-49398

6.1 MEDIUM

📋 TL;DR

This vulnerability allows attackers to inject malicious scripts into web pages through the Easy Appointments WordPress plugin. It affects all WordPress sites using Easy Appointments version 3.12.14 or earlier, potentially compromising user sessions and site integrity.

💻 Affected Systems

Products:
  • Easy Appointments WordPress Plugin
Versions: All versions up to and including 3.12.14
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with the Easy Appointments plugin active. No special configuration required.

⚠️ 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 steal administrator credentials, deface websites, redirect users to malicious sites, or perform actions on behalf of authenticated users.

🟠

Likely Case

Attackers inject malicious scripts to steal user session cookies, perform phishing attacks, or deface appointment booking pages.

🟢

If Mitigated

With proper input validation and output encoding, the risk is limited to minor content display issues without script execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Basic XSS vulnerabilities are commonly exploited. The vulnerability is in content handling, making exploitation straightforward.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.12.15 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/easy-appointments/vulnerability/wordpress-easy-appointments-plugin-3-12-14-content-injection-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Easy Appointments and click 'Update Now'. 4. Verify the plugin version is 3.12.15 or higher.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the Easy Appointments plugin until patched

wp plugin deactivate easy-appointments

Content Security Policy

all

Implement CSP headers to restrict script execution

Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to web server configuration

🧯 If You Can't Patch

  • Implement WAF rules to block XSS payloads targeting Easy Appointments endpoints
  • Restrict access to appointment booking functionality to trusted users only

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Easy Appointments version. If version is 3.12.14 or lower, system is vulnerable.

Check Version:

wp plugin get easy-appointments --field=version

Verify Fix Applied:

After updating, verify plugin version shows 3.12.15 or higher in WordPress admin.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Easy Appointments endpoints containing script tags or JavaScript code
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests with suspicious parameters like <script>, javascript:, or encoded payloads to appointment-related URLs

SIEM Query:

source="web_server_logs" AND (uri="*easy-appointments*" AND (content="*<script>*" OR content="*javascript:*" OR content="*onerror=*"))

🔗 References

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