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CVE-2026-65913— DOMPurify before 3.3.2 Prototype Pollution via USE_PROFILES

Quick assessment

Affected
cure53 DOMPurify
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.

Cure53 DOMPurify是Cure53公司开源的一款使用JavaScript编写的,用于HTML、MathML和SVG的DOM(文档对象模型)。 Cure53 DOMPurify 3.3.2之前版本存在输入验证错误漏洞，该漏洞源于USE_PROFILES模式中的原型污染问题，允许攻击者通过污染Array.prototype属性绕过属性过滤，可设置Array.prototype属性（如将onclick设为true）导致DOMPurify将事件处理器视为允许列表属性，造成基于DOM的跨站脚本。

CVSS 6.1 · Medium EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
cure53 DOMPurify < 3.3.2 affected
3.3.2 unaffected
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I. Basic Information for CVE-2026-65913

Vulnerability Information
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Vulnerability Title
DOMPurify before 3.3.2 Prototype Pollution via USE_PROFILES
Source: CVE Program / CVE List V5
Vulnerability Description
DOMPurify before 3.3.2 contains a prototype pollution vulnerability in USE_PROFILES mode that allows attackers to bypass attribute filtering by polluting Array.prototype properties. Attackers can set Array.prototype properties like onclick to true, causing DOMPurify to accept event handlers as allowlisted attributes and resulting in DOM-based XSS when sanitized markup is rendered.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
Cure53 DOMPurify 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cure53 DOMPurify是Cure53公司开源的一款使用JavaScript编写的,用于HTML、MathML和SVG的DOM(文档对象模型)。 Cure53 DOMPurify 3.3.2之前版本存在输入验证错误漏洞，该漏洞源于USE_PROFILES模式中的原型污染问题，允许攻击者通过污染Array.prototype属性绕过属性过滤，可设置Array.prototype属性（如将onclick设为true）导致DOMPurify将事件处理器视为允许列表属性，造成基于DOM的跨站脚本。
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

Vendor Product Affected Versions CPE Subscribe
cure53 DOMPurify 0 ~ 3.3.2 -

II. Public POCs for CVE-2026-65913

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III. Intelligence Information for CVE-2026-65913

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Vendor Advisories for CVE-2026-65913 (2)

Same Patch Batch · cure53 · 2026-07-23 · 11 CVEs total

CVE-2026-65898 7.2 HIGH DOMPurify before 3.4.11 Permanent Attribute Allowlist Pollution via setConfig
CVE-2026-65899 6.1 MEDIUM DOMPurify before 3.4.9 Trusted Types Policy State Contamination
CVE-2026-65901 6.1 MEDIUM DOMPurify 3.4.6 Cross-Site Scripting via IN_PLACE nodeName
CVE-2026-65900 6.1 MEDIUM DOMPurify before 3.4.8 Template Expression Injection via RETURN_DOM
CVE-2026-65912 6.1 MEDIUM DOMPurify before 3.3.2 URI Validation Bypass via ADD_ATTR
CVE-2026-65911 6.1 MEDIUM DOMPurify before 3.4.0 XSS via ADD_ATTR/ADD_TAGS State Leakage
CVE-2026-65903 6.1 MEDIUM DOMPurify before 3.4.0 ADD_TAGS Function Bypasses FORBID_TAGS
CVE-2026-65902 6.1 MEDIUM DOMPurify before 3.4.7 Hook Mutation Pollution via allowedTags
CVE-2026-65914 5.3 MEDIUM DOMPurify before 3.3.2 Mutation XSS via Re-Contextualization
CVE-2026-65904 4.7 MEDIUM DOMPurify through 3.3.3 Cross-Site Scripting via IN_PLACE mode

IV. Related Vulnerabilities

Same product: DOMPurify
Same vendor: cure53
Same weakness: CWE-1321

V. Comments for CVE-2026-65913

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