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CVE-2026-103686— rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scripting

Quick assessment

Affected
rhukster dom-sanitizer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 rhukster/dom-sanitizer 1.0.15 及更早版本中发现了一个漏洞。该漏洞影响 URL 验证组件中 文件里的 函数。该缺陷可导致跨站脚本攻击（XSS），且攻击者可远程发起利用。相关漏洞利用代码已公开，可能被用于实际攻击。建议升级至 1.0.16 版本以修复此问题。补丁名称：4623b565d060bc02ca5a07d8c8241fe28e2edfda。建议升级受影响的组件。

CVSS 3.5 · Low
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I. Basic Information for CVE-2026-103686

Vulnerability Information
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Vulnerability Title
rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in rhukster dom-sanitizer up to 1.0.15. Impacted is the function DOMSanitizer::isDangerousUrl of the file src/DOMSanitizer.php of the component URL Validation. This manipulation causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been published and may be used. Upgrading to version 1.0.16 is recommended to address this issue. Patch name: 4623b565d060bc02ca5a07d8c8241fe28e2edfda. It is suggested to upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
rhukster dom-sanitizer 1.0.0 cpe:2.3:a:rhukster:dom-sanitizer:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-103686

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III. Intelligence Information for CVE-2026-103686

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Patches & Fixes for CVE-2026-103686 (2)

Vendor Advisories for CVE-2026-103686 (1)

Proof of Concept for CVE-2026-103686 (1)

IV. Related Vulnerabilities

Same product: dom-sanitizer
Same vendor: rhukster
Same weakness: CWE-79

V. Comments for CVE-2026-103686

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