CVE-2025-63000

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Sermon Manager WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites using Sermon Manager versions up to 2.30.0 are affected. The vulnerability enables attackers to steal session cookies, redirect users, or perform actions on their behalf.

💻 Affected Systems

Products:
  • Sermon Manager for WordPress
Versions: n/a through 2.30.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using vulnerable versions of the Sermon Manager plugin are affected 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 steal administrator session cookies, take over the WordPress site, install backdoors, deface the site, or use it as a platform for further attacks against visitors.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, redirect users to phishing sites, or perform unauthorized actions on behalf of authenticated users.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users, preventing execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities typically require some level of access to input fields, but once injected, the payload affects all users viewing the compromised content.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.30.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/sermon-manager-for-wordpress/vulnerability/wordpress-sermon-manager-plugin-2-30-0-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Sermon Manager' and click 'Update Now'. 4. Verify the plugin version is 2.30.1 or higher.

🔧 Temporary Workarounds

Disable Sermon Manager Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate sermon-manager

Implement Content Security Policy

all

Add CSP headers to restrict script execution sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Implement a Web Application Firewall (WAF) with XSS protection rules
  • Restrict plugin access to trusted users only and monitor for suspicious input

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins → Sermon Manager version

Check Version:

wp plugin get sermon-manager --field=version

Verify Fix Applied:

Verify Sermon Manager version is 2.30.1 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to sermon-related endpoints
  • Suspicious JavaScript payloads in request parameters
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • Unexpected outbound connections from WordPress site to external domains
  • Suspicious script tags in HTTP responses

SIEM Query:

source="web_server_logs" AND (uri="*sermon*" OR uri="*wp-content/plugins/sermon-manager*") AND (message="*<script>*" OR message="*javascript:*" OR message="*onload=*" OR message="*onerror=*")

🔗 References

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