FKIE_CVE-2026-63123

Vulnerability from fkie_nvd - Published: 2026-08-19 22:16 - Updated: 2026-08-19 22:16
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Summary
Tina is a headless content management system. Prior to 2.5.2, the TinaCMS CLI package's Vite dev server packages/@tinacms/cli/src/next/vite/cors.ts origin callback returns false for a disallowed origin but does not reject the request, and packages/@tinacms/cli/src/next/vite/plugins.ts still routes POST /media/upload/* to mediaRouter.handlePost. The upload code in packages/@tinacms/cli/src/next/commands/dev-command/server/media.ts writes attacker-controlled multipart contents inside the configured media root. A remote attacker can cause a developer's browser to submit this state-changing request by inducing the developer to visit an attacker-controlled page while tinacms dev is running. This issue is fixed in version 2.5.2.
References
security-advisories@github.comhttps://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260
security-advisories@github.comhttps://github.com/tinacms/tinacms/pull/7111
security-advisories@github.comhttps://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2
security-advisories@github.comhttps://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "tinacms",
          "vendor": "tinacms",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.5.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Tina is a headless content management system. Prior to 2.5.2, the TinaCMS CLI package\u0027s Vite dev server packages/@tinacms/cli/src/next/vite/cors.ts origin callback returns false for a disallowed origin but does not reject the request, and packages/@tinacms/cli/src/next/vite/plugins.ts still routes POST /media/upload/* to mediaRouter.handlePost. The upload code in packages/@tinacms/cli/src/next/commands/dev-command/server/media.ts writes attacker-controlled multipart contents inside the configured media root. A remote attacker can cause a developer\u0027s browser to submit this state-changing request by inducing the developer to visit an attacker-controlled page while tinacms dev is running. This issue is fixed in version 2.5.2."
    }
  ],
  "id": "CVE-2026-63123",
  "lastModified": "2026-08-19T22:16:58.710",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-08-19T22:16:58.710",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/tinacms/tinacms/commit/211997cdb53cbd43638bdee999faa65375cfc260"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/tinacms/tinacms/pull/7111"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/tinacms/tinacms/releases/tag/@tinacms/cli@2.5.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-rgr9-r7mj-mf6x"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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