---
cve: "CVE-2025-63703"
severity: "CRITICAL"
cvss: 9.8
epss: "0.4%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-05-07 16:16:17"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-24T00:22:19+02:00"
---

# CVE-2025-63703

> 9.8 CRITICAL · 🧪 PoC

## Beschreibung

npm package parse-ini v1.0.6 is vulnerable to Prototype Pollution in index.js().

## CNA-Record (Kanon, cvelistV5)

- CNA: **mitre**
- State: PUBLISHED
- Stand: 2026-05-08 22:30:22

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-1321** — Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
  The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

## Angriffsmuster (CAPEC)

- [CAPEC-1 — Accessing Functionality Not Properly Constrained by ACLs](https://capec.mitre.org/data/definitions/1.html) _(Severity: High)_
- [CAPEC-77 — Manipulating User-Controlled Variables](https://capec.mitre.org/data/definitions/77.html) _(Severity: Very High)_
- [CAPEC-180 — Exploiting Incorrectly Configured Access Control Security Levels](https://capec.mitre.org/data/definitions/180.html) _(Severity: Medium)_

## ATT&CK-Techniken

- [T1574.010 — Hijack Execution Flow: ServicesFile Permissions Weakness](https://attack.mitre.org/techniques/T1574/010/)

## Referenzen

- <https://www.npmjs.com/package/parse-ini?activeTab=code>
- <https://gist.github.com/6en6ar/bdc8e0d472406ab98431f10273cbdbf3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2025-63703/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_