CVE-2026-44977

{
  "id": "CVE-2026-44977",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-16T16:17:44.483",
  "lastModified": "2026-10-21T03:17:19.330",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "countly-server is the server-side part of Countly, a product analytics solution. Prior to 24.05.50 and 25.03.44, plugins/star-rating/api/api.js allows a non-global application administrator to use uploadFeedbackFile to store attacker-controlled active content while trusting the supplied MIME type. plugins/star-rating/frontend/app.js publicly serves the stored content from feedback/preview/ with the attacker-influenced Content-Type, so a global administrator who opens the preview executes the payload in the Countly origin and exposes authenticated session capabilities, including auth_token and csrf_token values. This issue is fixed in versions 24.05.50 and 25.03.44."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Countly",
          "product": "countly-server",
          "versions": [
            {
              "version": "< 24.05.50",
              "status": "affected"
            },
            {
              "version": ">= 25.03, < 25.03.44",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
          "baseScore": 9.0,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-21T02:24:09.405721Z",
          "id": "CVE-2026-44977",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/Countly/countly-server/commit/ae899f37bc6d70c1b44859756ce80a204ae72631",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Countly/countly-server/commit/fcb16c808c0fdb6dc99fe9c66de7fc560b3a9c41",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Countly/countly-server/releases/tag/24.05.50",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Countly/countly-server/releases/tag/25.03.44",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/Countly/countly-server/security/advisories/GHSA-jqp4-p86c-phxc",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}