{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-64961",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-20T14:58:00.986035Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-20T15:26:26.085Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "ATutor",
          "repo": "https://github.com/atutor/ATutor",
          "vendor": "ATutor",
          "versions": [
            {
              "status": "affected",
              "version": "2.2.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Micha\u0142 Majchrowicz (AFINE Team)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Marcin Wyczechowski (AFINE Team)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eATutor is vulnerable to authentication bypass .\u0026nbsp;\u003cspan\u003eAlthough a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths.\u003c/span\u003e\u003cspan\u003e\u0026nbsp;An unauthenticated attacker who can determine a user\u0027s identifier and registration timestamp can generate a valid token\u0026nbsp;\u003c/span\u003eand authenticate as an existing user,\u003cspan\u003e\u0026nbsp;including administrator, without knowing the password.\u003c/span\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eProduct is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.\u003c/div\u003e"
            }
          ],
          "value": "ATutor is vulnerable to authentication bypass .\u00a0Although a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths.\u00a0An unauthenticated attacker who can determine a user\u0027s identifier and registration timestamp can generate a valid token\u00a0and authenticate as an existing user,\u00a0including administrator, without knowing the password.\n\n\n\n\n\nProduct is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639 Authorization bypass through User-Controlled key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-20T13:57:41.476Z",
        "orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
        "shortName": "CERT-PL"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://cert.pl/en/posts/2026/08/CVE-2026-64960"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://atutor.github.io/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "tags": [
        "x_open-source",
        "unsupported-when-assigned"
      ],
      "title": "Authentication Bypass in ATutor",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
    "assignerShortName": "CERT-PL",
    "cveId": "CVE-2026-64961",
    "datePublished": "2026-08-20T13:57:41.476Z",
    "dateReserved": "2026-07-21T09:36:01.217Z",
    "dateUpdated": "2026-08-20T15:26:26.085Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-64961\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-20T14:58:00.986035Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-20T15:20:57.380Z\"}}], \"cna\": {\"tags\": [\"x_open-source\", \"unsupported-when-assigned\"], \"title\": \"Authentication Bypass in ATutor\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Micha\\u0142 Majchrowicz (AFINE Team)\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Marcin Wyczechowski (AFINE Team)\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 6.3, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"LOW\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"LOW\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"LOW\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/atutor/ATutor\", \"vendor\": \"ATutor\", \"product\": \"ATutor\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.2.4\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unknown\"}], \"references\": [{\"url\": \"https://cert.pl/en/posts/2026/08/CVE-2026-64960\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://atutor.github.io/\", \"tags\": [\"product\"]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.3\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"ATutor is vulnerable to authentication bypass .\\u00a0Although a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths.\\u00a0An unauthenticated attacker who can determine a user\u0027s identifier and registration timestamp can generate a valid token\\u00a0and authenticate as an existing user,\\u00a0including administrator, without knowing the password.\\n\\n\\n\\n\\n\\nProduct is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cdiv\u003eATutor is vulnerable to authentication bypass .\u0026nbsp;\u003cspan\u003eAlthough a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths.\u003c/span\u003e\u003cspan\u003e\u0026nbsp;An unauthenticated attacker who can determine a user\u0027s identifier and registration timestamp can generate a valid token\u0026nbsp;\u003c/span\u003eand authenticate as an existing user,\u003cspan\u003e\u0026nbsp;including administrator, without knowing the password.\u003c/span\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eProduct is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.\u003c/div\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-639\", \"description\": \"CWE-639 Authorization bypass through User-Controlled key\"}]}], \"providerMetadata\": {\"orgId\": \"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6\", \"shortName\": \"CERT-PL\", \"dateUpdated\": \"2026-08-20T13:57:41.476Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-64961\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-20T15:26:26.085Z\", \"dateReserved\": \"2026-07-21T09:36:01.217Z\", \"assignerOrgId\": \"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6\", \"datePublished\": \"2026-08-20T13:57:41.476Z\", \"assignerShortName\": \"CERT-PL\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}