CVE Tools
Sign in

CVE-2021-47986

Parse Server - Unreviewed Code Execution via Malicious Version Tags

Published: Jun 25, 2026Updated: Jul 30, 2026 Sources: CVE List NVDCWE-494
7.5HIGH
NVD MITRE
EPSS Score
0.1%
Top 97.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Parse Server before 4.10.0 contains a supply chain vulnerability where incorrect version tags were pushed to the repository linking to unreviewed code in a personal fork. Attackers could exploit this by specifying affected version tags in dependency declarations to execute unreviewed and potentially malicious code.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-494

Affected Products

parseplatform
oss-projectaka parse-community, parse-server, parse server, parse platform, parse
parse-serverLibraryLibrary
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-47986?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

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

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-47986 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows