FKIE_CVE-2026-58266

Vulnerability from fkie_nvd - Published: 2026-07-07 22:16 - Updated: 2026-07-08 15:28
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Summary
Anki is a program for creating and reviewing flashcards. Prior to 25.09.4, Anki's webview-based pages communicate with the Rust backend using an internal localhost API, and user scripts included via iframes in the editor can access this API despite protections intended to block reviewer and editor scripts. A malicious imported card package with an embedded iframe can use exposed API methods such as getImageForOcclusion to read arbitrary files accessible to the Anki process and exfiltrate them over the network. This issue is fixed in version 25.09.4.
References
security-advisories@github.comhttps://github.com/ankitects/anki/commit/b2b68d829e853da51b5de8aad6c13b53e90bc20d
security-advisories@github.comhttps://github.com/ankitects/anki/releases/tag/25.09.4
security-advisories@github.comhttps://github.com/ankitects/anki/security/advisories/GHSA-cw6h-ffmh-x6vh
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "anki",
          "vendor": "ankitects",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 25.09.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Anki is a program for creating and reviewing flashcards. Prior to 25.09.4, Anki\u0027s webview-based pages communicate with the Rust backend using an internal localhost API, and user scripts included via iframes in the editor can access this API despite protections intended to block reviewer and editor scripts. A malicious imported card package with an embedded iframe can use exposed API methods such as getImageForOcclusion to read arbitrary files accessible to the Anki process and exfiltrate them over the network. This issue is fixed in version 25.09.4."
    }
  ],
  "id": "CVE-2026-58266",
  "lastModified": "2026-07-08T15:28:15.630",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-58266",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-08T13:23:23.495354Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-07T22:16:54.207",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/ankitects/anki/commit/b2b68d829e853da51b5de8aad6c13b53e90bc20d"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/ankitects/anki/releases/tag/25.09.4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/ankitects/anki/security/advisories/GHSA-cw6h-ffmh-x6vh"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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