CVE-2025-48050Public exploitNetwork attack vector

File disclosure via development-server path traversal

Published May 15, 2025 · Updated May 16, 2025

Path traversal in Cure53 DOMPurify 3.2.5 and earlier allows remote attackers to read local files through its development server. scripts/server.js joins the raw URL pathname to process.cwd() and streams the resulting path without verifying that it remains beneath that directory. The helper must be started manually; Cure53 disputes that this development-only behavior constitutes a vulnerability.

CVSS severity7.5
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in Cure53 DOMPurify 3.2.5 and earlier allows remote attackers to read local files through its development server. scripts/server.js joins the raw URL pathname to process.cwd() and streams the resulting path without verifying that it remains beneath that directory. The helper must be started manually; Cure53 disputes that this development-only behavior constitutes a vulnerability.

The record

CVE
CVE-2025-48050
Published
May 15, 2025
Updated
May 16, 2025
Vendor
Cure53
Product
DOMPurify
Classifications
CWE-24, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2025CVE publishedPublication date reported by the CVE source.
  2. May 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cure53 · DOMPurifyversion=0 <=3.2.5

Published CVSS scores

7.5MITRECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-24Path Traversal: '../filedir'
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo