CVE•Published 2026-07-14•Modified 2026-07-21•0 articles on news•5 live references•NVD data

CVE-2026-49459Cure53 · Dompurify

Vulnerability data via NVD (ingested)

CVSS v3.1

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS percentile

Exploit Prediction Scoring System · top 83% of all CVEs

Weaknesses (CWE)

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CWE-693Protection Mechanism Failure CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Description

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitize(root, { IN_PLACE: true }) could preserve event-handler attributes on an attacker-controlled <form> root when a descendant name clobbered properties checked by _isClobbered, because _forceRemove no-opped on the parent-less root and _sanitizeAttributes returned early. This issue is fixed in version 3.4.6.

Timeline

Published 2026-07-14

Modified 2026-07-21

External references

NVD MITRE Exploit-DB trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-49459

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Cure53 Dompurify"

All exposed Cure53 Dompurify instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Dompurify"

HTTP body or banner mentions "Dompurify" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-49459