github - ghsa-9329-mxxw-qwf8

GHSA-9329-MXXW-QWF8

Vulnerability from github – Published: 2025-10-16 19:49 – Updated: 2025-10-16 19:49

Summary

Strapi core vulnerable to sensitive data exposure via CORS misconfiguration

Details

Summary

A CORS misconfiguration vulnerability exists in default installations of Strapi where attacker-controlled origins are improperly reflected in API responses.

Technical Details

By default, Strapi reflects the value of the Origin header back in the Access-Control-Allow-Origin response header without proper validation or whitelisting.

Example: Origin: http://localhost:8888 Access-Control-Allow-Origin: http://localhost:8888 Access-Control-Allow-Credentials: true

This allows an attacker-controlled site (on a different port, like 8888) to send credentialed requests to the Strapi backend on 1337.

Suggested Fix

Explicitly whitelist trusted origins
Avoid reflecting dynamic origins

Severity ?

6.5 (Medium)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@strapi/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.20.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-53092"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-284",
      "CWE-364",
      "CWE-942"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-16T19:49:01Z",
    "nvd_published_at": "2025-10-16T17:15:33Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nA CORS misconfiguration vulnerability exists in default installations of Strapi where attacker-controlled origins are improperly reflected in API responses.\n\n### Technical Details\n\nBy default, Strapi reflects the value of the Origin header back in the Access-Control-Allow-Origin response header without proper validation or whitelisting.\n\nExample:\n`Origin: http://localhost:8888`\n`Access-Control-Allow-Origin: http://localhost:8888`\n`Access-Control-Allow-Credentials: true`\n\nThis allows an attacker-controlled site (on a different port, like 8888) to send credentialed requests to the Strapi backend on 1337.\n\n### Suggested Fix\n\n1. Explicitly whitelist trusted origins\n2. Avoid reflecting dynamic origins",
  "id": "GHSA-9329-mxxw-qwf8",
  "modified": "2025-10-16T19:49:01Z",
  "published": "2025-10-16T19:49:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/strapi/strapi/security/advisories/GHSA-9329-mxxw-qwf8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53092"
    },
    {
      "type": "WEB",
      "url": "https://github.com/strapi/strapi/commit/6e535cb756"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/strapi/strapi"
    },
    {
      "type": "WEB",
      "url": "https://github.com/strapi/strapi/releases/tag/v5.20.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Strapi core vulnerable to sensitive data exposure via CORS misconfiguration"
}

CVE-2025-53092 (GCVE-0-2025-53092)

Vulnerability from cvelistv5 – Published: 2025-10-16 16:29 – Updated: 2025-10-16 18:13

Title

Strapi core vulnerable to sensitive data exposure via CORS misconfiguration

Summary

Strapi 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.

Severity ?

6.5 (Medium)


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

CWE

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

Assigner

GitHub_M

References

URL

Tags

https://github.com/strapi/strapi/security/advisor…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	strapi	strapi	Affected: < 5.20.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-53092",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-16T18:03:56.017150Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-16T18:13:08.618Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "strapi",
          "vendor": "strapi",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.20.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Strapi 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-364",
              "description": "CWE-364: Signal Handler Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-942",
              "description": "CWE-942: Permissive Cross-domain Policy with Untrusted Domains",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-16T16:29:35.246Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/strapi/strapi/security/advisories/GHSA-9329-mxxw-qwf8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/strapi/strapi/security/advisories/GHSA-9329-mxxw-qwf8"
        }
      ],
      "source": {
        "advisory": "GHSA-9329-mxxw-qwf8",
        "discovery": "UNKNOWN"
      },
      "title": "Strapi core vulnerable to sensitive data exposure via CORS misconfiguration"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-53092",
    "datePublished": "2025-10-16T16:29:35.246Z",
    "dateReserved": "2025-06-25T13:41:23.085Z",
    "dateUpdated": "2025-10-16T18:13:08.618Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-9329-MXXW-QWF8

Summary

Technical Details

Suggested Fix

CVE-2025-53092 (GCVE-0-2025-53092)

Tags

Sightings

Nomenclature