Strapi core vulnerable to sensitive data exposure via CORS misconfiguration

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-53092
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-16 17:15:33 UTC
Updated2026-10-19 17:10:00 UTC
DescriptionStrapi is an open source headless content management system. Strapi versions prior to 5.20.0 contain a CORS misconfiguration vulnerability in default installations. By default, Strapi reflects the value of the Origin header back in the Access-Control-Allow-Origin response header without proper validation or whitelisting. This allows an attacker-controlled site to send credentialed requests to the Strapi backend. An attacker can exploit this by hosting a malicious site on a different origin (e.g., different port) and sending requests with credentials to the Strapi API. The vulnerability is fixed in version 5.20.0. No known workarounds exist.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS: 0.002890000 probability, percentile 0.201220000 (date 2026-10-19)

Problem Types: CWE-200 | CWE-284 | CWE-364 | CWE-942 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor | CWE-284 CWE-284: Improper Access Control | CWE-364 CWE-364: Signal Handler Race Condition | CWE-942 CWE-942: Permissive Cross-domain Policy with Untrusted Domains

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Strapi Strapi All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Strapi Strapi affected < 5.20.0 Not specified

References

ReferenceSourceLinkTags
github.com/strapi/strapi/security/advisories/GHSA-9329-mxxw-qwf8 [email protected] github.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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