Vulnerability in Parse-Community Parse-Server
CVE-2021-47987
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Parse-Community Parse-Server — versions 0, 4.10.0
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-593v-wcqx-hq2w (vendor-advisory)
- www.vulncheck.com/advisories/parse-server-arbitrary-code-execution-via-maliciou… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47987?
- CVE-2021-47987 is a high-severity vulnerability in Parse-Community Parse-Server, classified under Download of Code Without Integrity Check. CVSS score: 7.5/10. Published 2026-06-25.
- How severe is CVE-2021-47987?
- High severity. CVSS v3 base score is 7.5 out of 10.