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Vulnerability details: VCID-q8xg-vs4w-d7g7
Vulnerability ID VCID-q8xg-vs4w-d7g7
Aliases CVE-2026-30228
GHSA-xfh7-phr7-gr2x
Summary parse-server's file creation and deletion bypasses `readOnlyMasterKey` write restriction The `readOnlyMasterKey` can be used to create and delete files via the Files API (`POST /files/:filename`, `DELETE /files/:filename`). This bypasses the read-only restriction which violates the access scope of the `readOnlyMasterKey`. Any Parse Server deployment that uses `readOnlyMasterKey` and exposes the Files API is affected. An attacker with access to the `readOnlyMasterKey` can upload arbitrary files or delete existing files.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-863 Incorrect Authorization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00015 https://api.first.org/data/v1/epss?cve=CVE-2026-30228
epss 0.00015 https://api.first.org/data/v1/epss?cve=CVE-2026-30228
epss 0.00015 https://api.first.org/data/v1/epss?cve=CVE-2026-30228
epss 0.00015 https://api.first.org/data/v1/epss?cve=CVE-2026-30228
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-xfh7-phr7-gr2x
cvssv4 6.9 https://github.com/parse-community/parse-server
generic_textual MODERATE https://github.com/parse-community/parse-server
cvssv4 6.9 https://github.com/parse-community/parse-server/releases/tag/8.6.5
generic_textual MODERATE https://github.com/parse-community/parse-server/releases/tag/8.6.5
ssvc Track https://github.com/parse-community/parse-server/releases/tag/8.6.5
cvssv4 6.9 https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.3
generic_textual MODERATE https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.3
ssvc Track https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.3
cvssv3.1_qr MODERATE https://github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
cvssv4 6.9 https://github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
generic_textual MODERATE https://github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
ssvc Track https://github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
cvssv4 6.9 https://nvd.nist.gov/vuln/detail/CVE-2026-30228
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2026-30228
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-30228
https://github.com/parse-community/parse-server
https://github.com/parse-community/parse-server/releases/tag/8.6.5
https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.3
CVE-2026-30228 https://nvd.nist.gov/vuln/detail/CVE-2026-30228
GHSA-xfh7-phr7-gr2x https://github.com/advisories/GHSA-xfh7-phr7-gr2x
GHSA-xfh7-phr7-gr2x https://github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/8.6.5
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-09T20:29:21Z/ Found at https://github.com/parse-community/parse-server/releases/tag/8.6.5
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.3
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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physical

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-09T20:29:21Z/ Found at https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-09T20:29:21Z/ Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-30228
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

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none

passive

active

high

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Exploit Prediction Scoring System (EPSS)
Percentile 0.03402
EPSS Score 0.00015
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:51:24.773033+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/parse-server/CVE-2026-30228.yml 38.6.0