---
cve: "CVE-2020-5251"
severity: "HIGH"
cvss: 7.7
epss: "85%"
vendor: "parse-community"
kev: false
exploited: false
published: "2020-03-04 15:15:13"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T16:00:21+02:00"
---

# CVE-2020-5251

> 7.7 HIGH · 🧪 PoC

## Beschreibung

In parser-server before version 4.1.0, you can fetch all the users objects, by using regex in the NoSQL query. Using the NoSQL, you can use a regex on sessionToken and find valid accounts this way.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- b9742b6fb9298c18c30d488dd080c3e962d603eb (Commit)
- 3a3a5eee5ffa48da1352423312cb767de14de269 (Commit)

## Referenzen

- <https://github.com/parse-community/parse-server/security/advisories/GHSA-h4mf-75hf-67w4>
- <https://github.com/parse-community/parse-server/commit/3a3a5eee5ffa48da1352423312cb767de14de269>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-5251) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_