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Vulnerability details: VCID-r9jw-pgw5-guh5
Vulnerability ID VCID-r9jw-pgw5-guh5
Aliases CVE-2020-27664
GHSA-7frv-9phw-vrvr
Summary Improper Input Validation `admin/src/containers/InputModalStepperProvider/index.js` in Strapi has unwanted `/proxy?url=` functionality.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-862 Missing Authorization
System Score Found at
epss 0.01344 https://api.first.org/data/v1/epss?cve=CVE-2020-27664
epss 0.01344 https://api.first.org/data/v1/epss?cve=CVE-2020-27664
cvssv3.1 9.8 https://github.com/strapi/strapi/pull/8442
generic_textual CRITICAL https://github.com/strapi/strapi/pull/8442
cvssv3.1 9.8 https://github.com/strapi/strapi/releases/tag/v3.2.5
generic_textual CRITICAL https://github.com/strapi/strapi/releases/tag/v3.2.5
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-27664
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2020-27664
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-27664
https://github.com/strapi/strapi/pull/8442
https://github.com/strapi/strapi/releases/tag/v3.2.5
CVE-2020-27664 https://nvd.nist.gov/vuln/detail/CVE-2020-27664
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/strapi/strapi/pull/8442
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/strapi/strapi/releases/tag/v3.2.5
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27664
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.80375
EPSS Score 0.01344
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:20:33.479232+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/strapi/CVE-2020-27664.yml 38.6.0