Parse Server - Unreviewed Code Execution via Malicious Version Tags
Summary
| CVE | CVE-2021-47986 |
|---|---|
| State | PUBLISHED |
| Assigner | VulnCheck |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-25 22:16:58 UTC |
| Updated | 2026-07-30 14:32:43 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 7.7 HIGH from [email protected]
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.001200000 probability, percentile 0.021590000 (date 2026-08-02)
Problem Types: CWE-494 | CWE-494 Download of Code Without Integrity Check
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 7.7 | HIGH | 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/E:X/C... |
| 4.0 | CNA | CVSS | 7.7 | HIGH | 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 |
| 3.1 | [email protected] | Secondary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.5 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighAttack Requirements
PresentPrivileges Required
NoneUser Interaction
PassiveConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Parseplatform | Parse-server | 4.0.0 | beta1 | All | All |
| Application | Parseplatform | Parse-server | 4.0.0 | beta2 | All | All |
| Application | Parseplatform | Parse-server | 4.0.0 | beta3 | All | All |
| Application | Parseplatform | Parse-server | 4.0.0 | beta4 | All | All |
| Application | Parseplatform | Parse-server | 4.0.0 | beta5 | All | All |
| Application | Parseplatform | Parse-server | 4.0.0 | beta6 | All | All |
| Application | Parseplatform | Parse-server | 4.0.10 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.11 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.12 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.13 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.14 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.3 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.4 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.6 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.7 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.8 | All | All | All |
| Application | Parseplatform | Parse-server | 4.0.9 | All | All | All |
| Application | Parseplatform | Parse-server | 4.6.0 | - | All | All |
| Application | Parseplatform | Parse-server | 4.6.0 | beta | All | All |
| Application | Parseplatform | Parse-server | 4.7.0 | All | All | All |
| Application | Parseplatform | Parse-server | 4.8.0 | All | All | All |
| Application | Parseplatform | Parse-server | 4.8.1 | All | All | All |
| Application | Parseplatform | Parse-server | 4.8.2 | All | All | All |
| Application | Parseplatform | Parse-server | 4.8.3 | All | All | All |
| Application | Parseplatform | Parse-server | 4.8.4 | All | All | All |
| Application | Parseplatform | Parse-server | 4.8.5 | All | All | All |
| Application | Parseplatform | Parse-server | 4.9.0 | All | All | All |
| Application | Parseplatform | Parse-server | 4.9.1 | All | All | All |
| Application | Parseplatform | Parse-server | 4.9.2 | All | All | All |
| Application | Parseplatform | Parse-server | 4.9.3 | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Parse-community | Parse-server | affected 4.10.0 semver | Not specified |
| CNA | Parse-community | Parse-server | unaffected 4.10.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.vulncheck.com/advisories/parse-server-unreviewed-code-execution-via-malicio... | [email protected] | www.vulncheck.com | Third Party Advisory |
| github.com/parse-community/parse-server/security/advisories/GHSA-593v-wc... | [email protected] | github.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.