CVE-2025-24738

4.3 MEDIUM

📋 TL;DR

A Cross-Site Request Forgery (CSRF) vulnerability in the NowButtons.com Call Now Button WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. This affects WordPress sites using the Call Now Button plugin versions up to 1.4.13. Attackers could modify plugin settings without the administrator's knowledge.

💻 Affected Systems

Products:
  • NowButtons.com Call Now Button WordPress Plugin
Versions: n/a through 1.4.13
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the vulnerable plugin installed and activated. Requires an authenticated administrator session to exploit.

⚠️ 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

An attacker could change the plugin's call button settings to redirect users to malicious sites, modify phone numbers to premium-rate numbers, or disable security features.

🟠

Likely Case

Attackers modify the call button configuration to redirect users or change displayed phone numbers, potentially leading to social engineering attacks or financial scams.

🟢

If Mitigated

With proper CSRF protections, administrators would be prompted for confirmation before any changes are made, preventing unauthorized modifications.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

CSRF attacks are well-understood and easy to implement. Exploitation requires tricking an authenticated administrator into visiting a malicious page.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.4.14 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/call-now-button/vulnerability/wordpress-call-now-button-plugin-1-4-13-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Call Now Button' and click 'Update Now'. 4. Verify version is 1.4.14 or higher.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the vulnerable plugin until patched

wp plugin deactivate call-now-button

CSRF Protection Middleware

all

Implement additional CSRF protection at web server or application level

🧯 If You Can't Patch

  • Restrict administrator access to trusted networks only
  • Implement strict Content Security Policy (CSP) headers to prevent malicious script execution

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Call Now Button version. If version is 1.4.13 or lower, you are vulnerable.

Check Version:

wp plugin get call-now-button --field=version

Verify Fix Applied:

After updating, verify the plugin version shows 1.4.14 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected plugin setting changes in WordPress logs
  • Multiple failed CSRF token validations

Network Indicators:

  • POST requests to /wp-admin/admin-ajax.php without proper referrer headers
  • Suspicious cross-origin requests to plugin endpoints

SIEM Query:

source="wordpress.log" AND "call-now-button" AND ("updated" OR "changed")

🔗 References

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