CVE-2026-65912— DOMPurify before 3.3.2 URI Validation Bypass via ADD_ATTR
Possible ATT&CK Techniques 3AI
T1190 · Exploit Public-Facing Application T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-65912
Vulnerability Information
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Vulnerability Title
DOMPurify before 3.3.2 URI Validation Bypass via ADD_ATTR
Source: CVE Program / CVE List V5
Vulnerability Description
DOMPurify before 3.3.2 contains a URI validation bypass vulnerability when ADD_ATTR is provided as a predicate function via EXTRA_ELEMENT_HANDLING.attributeCheck. Attackers can supply a predicate that accepts specific attribute and tag combinations to bypass URI-safe validation, allowing unsafe protocols like javascript: to survive sanitization and execute as DOM-based XSS when the link is activated.
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
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
II. Public POCs for CVE-2026-65912
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-65912 (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-2026-65913 | 6.1 MEDIUM | DOMPurify before 3.3.2 Prototype Pollution via USE_PROFILES |
| 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 before 3.4.4 Cross-Site Scripting via IN_PLACE mode |
IV. Related Vulnerabilities
Same product: DOMPurify
- CVE-2026-65914
DOMPurify before 3.3.2 Mutation XSS via Re-Contextualization - CVE-2026-65913
DOMPurify before 3.3.2 Prototype Pollution via USE_PROFILES - CVE-2026-65911
DOMPurify before 3.4.0 XSS via ADD_ATTR/ADD_TAGS State Leaka - CVE-2026-65904
DOMPurify before 3.4.4 Cross-Site Scripting via IN_PLACE mod - CVE-2026-65903
DOMPurify before 3.4.0 ADD_TAGS Function Bypasses FORBID_TAG
Same vendor: cure53
- CVE-2026-65914
DOMPurify before 3.3.2 Mutation XSS via Re-Contextualization - CVE-2026-65913
DOMPurify before 3.3.2 Prototype Pollution via USE_PROFILES - CVE-2026-65911
DOMPurify before 3.4.0 XSS via ADD_ATTR/ADD_TAGS State Leaka - CVE-2026-65904
DOMPurify before 3.4.4 Cross-Site Scripting via IN_PLACE mod - CVE-2026-65903
DOMPurify before 3.4.0 ADD_TAGS Function Bypasses FORBID_TAG
Same weakness: CWE-79
- CVE-2026-65914
DOMPurify before 3.3.2 Mutation XSS via Re-Contextualization - CVE-2026-65911
DOMPurify before 3.4.0 XSS via ADD_ATTR/ADD_TAGS State Leaka - CVE-2026-65901
DOMPurify 3.4.6 Cross-Site Scripting via IN_PLACE nodeName - CVE-2026-65900
DOMPurify before 3.4.8 Template Expression Injection via RET - CVE-2026-65898
DOMPurify before 3.4.11 Permanent Attribute Allowlist Pollut
V. Comments for CVE-2026-65912
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