---
cve: "CVE-2021-47987"
severity: "HIGH"
cvss: 7.7
epss: "12%"
vendor: "parse-community"
kev: false
exploited: false
published: "2026-06-25 22:16:58"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T06:32:20+02:00"
---

# CVE-2021-47987

> 7.7 HIGH · 🧪 PoC

## Beschreibung

Parse Server before 4.10.0 was affected by a supply chain incident in which incorrect version tags were pushed to the official repository pointing to an unreviewed personal fork of a contributor with write access. No releases were published with these tags; a project was exposed only if it defined a git-based dependency referencing one of the affected tags (for example, parse-server#4.9.3). The code behind the tags was not reviewed or approved, and although no malicious code was identified, the introduction of security vulnerabilities could not be ruled out.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- 7e1da90bb2dd543ee998a76e9a6f7426e14d200b (Commit)

## Referenzen

- <https://github.com/parse-community/parse-server/security/advisories/GHSA-593v-wcqx-hq2w>
- <https://www.vulncheck.com/advisories/parse-server-arbitrary-code-execution-via-malicious-version-tags>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-47987) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_