CVE-2023-52207 – This vulnerability allows remote attackers to e... (How to Fix)

Q: What is the severity of CVE-2023-52207?

CVE-2023-52207 has a CVSS score of 9.1 (CRITICAL). This vulnerability allows remote attackers to execute arbitrary code via PHP object injection through deserialization of untrusted data in the HTML5 MP3 Player with Playlist Free WordPress plugin. All WordPress sites using versions up to 3.0.0 of this plugin are affected.

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary code via PHP object injection through deserialization of untrusted data in the HTML5 MP3 Player with Playlist Free WordPress plugin. All WordPress sites using versions up to 3.0.0 of this plugin are affected.

💻 Affected Systems

Products:

SVNLabs Softwares HTML5 MP3 Player with Playlist Free WordPress plugin

Versions: All versions up to and including 3.0.0

Operating Systems: Any OS running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Requires WordPress installation with the vulnerable plugin activated.

📦 What is this software?

Html5 Mp3 Player With Playlist Free by Svnlabs

View all CVEs affecting Html5 Mp3 Player With Playlist Free →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete server compromise leading to data theft, ransomware deployment, or website defacement.

🟠

Likely Case

Remote code execution allowing attackers to install backdoors, steal sensitive data, or pivot to other systems.

🟢

If Mitigated

Limited impact if proper network segmentation and least privilege principles are implemented.

🌐 Internet-Facing: HIGH - WordPress plugins are typically internet-facing and this vulnerability requires no authentication.

🏢 Internal Only: MEDIUM - Internal WordPress installations could still be exploited by malicious insiders or compromised accounts.

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Public exploit details available on Patchstack. PHP object injection vulnerabilities are commonly weaponized.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.0.1 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/html5-mp3-player-with-playlist/wordpress-html5-mp3-player-plugin-3-0-0-php-object-injection-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'HTML5 MP3 Player with Playlist Free'. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete the plugin immediately.

🔧 Temporary Workarounds

Disable plugin

all

Deactivate the vulnerable plugin to prevent exploitation

wp plugin deactivate html5-mp3-player-with-playlist

WAF rule

all

Implement web application firewall rules to block deserialization attempts

🧯 If You Can't Patch

Remove the plugin completely from all WordPress installations
Implement strict network segmentation and monitor for exploitation attempts

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → HTML5 MP3 Player with Playlist Free version number

Check Version:

wp plugin get html5-mp3-player-with-playlist --field=version

Verify Fix Applied:

Verify plugin version is 3.0.1 or higher, or confirm plugin is removed

📡 Detection & Monitoring

Log Indicators:

Unusual POST requests to plugin endpoints
PHP deserialization errors in logs
Unexpected file uploads or process execution

Network Indicators:

HTTP requests containing serialized PHP objects
Traffic to known exploit patterns for this CVE

SIEM Query:

source="wordpress.log" AND "html5-mp3-player" AND ("unserialize" OR "php_object_injection")

📊 Metadata

CVE ID: CVE-2023-52207

CVSS v3 Score: 9.1 (CRITICAL)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CWE: CWE-502

Published: January 8, 2024

Last Updated: November 21, 2024

🔗 References

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