CVE-2025-26791
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.
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 3.2.4之前版本存在安全漏洞，该漏洞源于存在不正确的模板文字正则表达式，会导致突变跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-26791
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/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
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 3.2.4之前版本存在安全漏洞，该漏洞源于存在不正确的模板文字正则表达式，会导致突变跨站脚本攻击。
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-2025-26791
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Patches & Fixes for CVE-2025-26791 (2)
Security Blog Posts for CVE-2025-26791 (2)
IV. Related Vulnerabilities
Same product: DOMPurify
-
CVE-2026-109345
DOMPurify before 3.4.16 XSS via IN_PLACE Returned Rawtext Ro -
CVE-2026-109344
DOMPurify from 3.4.13 before 3.4.16 DOM XSS via IN_PLACE aft -
CVE-2026-75838
DOMPurify before 3.4.13 Cross-Site Scripting via IN_PLACE ho -
CVE-2026-66010
DOMPurify before 3.4.12 Hook Bypass via CUSTOM_ELEMENT_HANDL -
CVE-2026-65914
DOMPurify before 3.3.2 Mutation XSS via Re-Contextualization
Same vendor: Cure53
-
CVE-2026-109345
DOMPurify before 3.4.16 XSS via IN_PLACE Returned Rawtext Ro -
CVE-2026-109344
DOMPurify from 3.4.13 before 3.4.16 DOM XSS via IN_PLACE aft -
CVE-2026-75838
DOMPurify before 3.4.13 Cross-Site Scripting via IN_PLACE ho -
CVE-2026-66010
DOMPurify before 3.4.12 Hook Bypass via CUSTOM_ELEMENT_HANDL -
CVE-2026-65914
DOMPurify before 3.3.2 Mutation XSS via Re-Contextualization
Same weakness: CWE-79
-
CVE-2026-109685
WordPress Link Whisper Free plugin <= 0.9.7 - Cross Site Scr -
CVE-2026-105882
WordPress User Registration plugin <= 5.2.8 - Cross Site Scr -
CVE-2026-109702
WordPress Social Share Buttons plugin <= 1.31 - Cross Site S -
CVE-2026-108491
WordPress Everest Forms plugin <= 3.6.1 - Cross Site Scripti -
CVE-2026-108498
WordPress BSK PDF Manager plugin <= 3.8.1 - Cross Site Scrip
V. Comments for CVE-2025-26791
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