CVE-2021-47987

HIGH

Parse Server - Arbitrary Code Execution via Malicious Version Tags

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-593v-wcqx-hq2w)
https://github.com/parse-community/parse-server/security/advisories/GHSA-593v-wcqx-hq2w
Third Party Advisory third-party-advisory
VulnCheck Advisory: Parse Server - Arbitrary Code Execution via Malicious Version Tags
https://www.vulncheck.com/advisories/parse-server-arbitrary-code-execution-via-malicious-version-tags

Scores

CVSS v3 7.5
EPSS 0.0012
EPSS Percentile 2.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-494
Status published
Products (2)
parse-community/parse-server < 4.10.0
parse-community/parse-server 4.10.0
Published Jun 25, 2026
Tracked Since Jun 26, 2026