CVE-2026-0540— DOMPurify XSS via Missing Rawtext Elements in SAFE_FOR_XML
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I. Basic Information for CVE-2026-0540
Vulnerability Information
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Vulnerability Title
DOMPurify XSS via Missing Rawtext Elements in SAFE_FOR_XML
Source: NVD (National Vulnerability Database)
Vulnerability Description
DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFE_FOR_XML regex. Attackers can include payloads like </noscript><img src=x onerror=alert(1)> in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
DOMPurify 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DOMPurify是Cure53个人开发者的一款使用JavaScript编写的，用于HTML、MathML和SVG的DOM（文档对象模型）。 DOMPurify 3.1.3至3.3.1版本和2.5.3至2.5.8版本存在安全漏洞，该漏洞源于SAFE_FOR_XML正则表达式缺少对五个原始文本元素的处理，可能导致绕过属性清理并执行跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-0540
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- DOMPurify mXSS via Re-Contextualization | Fluid Attacksthird-party-advisory
- Release DOMPurify 3.3.2 · cure53/DOMPurify · GitHubrelease-notes
- https://nvd.nist.gov/vuln/detail/CVE-2026-0540
IV. Related Vulnerabilities
Same product: DOMPurify
- CVE-2026-41240
DOMPurify: FORBID_TAGS bypassed by function-based ADD_TAGS p - CVE-2026-41239
DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode - CVE-2026-41238
DOMPurify: Prototype Pollution to XSS Bypass via CUSTOM_ELEM - CVE-2025-15599
DOMPurify XSS via Textarea Rawtext Bypass in SAFE_FOR_XML - CVE-2025-48050
DOMPurify 安全漏洞
Same vendor: cure53
- CVE-2026-41240
DOMPurify: FORBID_TAGS bypassed by function-based ADD_TAGS p - CVE-2026-41239
DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode - CVE-2026-41238
DOMPurify: Prototype Pollution to XSS Bypass via CUSTOM_ELEM - CVE-2025-15599
DOMPurify XSS via Textarea Rawtext Bypass in SAFE_FOR_XML - CVE-2025-48050
DOMPurify 安全漏洞
Same weakness: CWE-79
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Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2026-0540
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