FKIE_CVE-2026-73243

Vulnerability from fkie_nvd - Published: 2026-08-11 20:18 - Updated: 2026-09-09 20:46
Severity
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Summary
kkFileView is a universal file online preview project based on Spring Boot. Prior to 5.0.1, the unauthenticated GET /addTask endpoint in kkFileView is omitted from TrustHostFilter and TrustDirFilter in server/src/main/java/cn/keking/config/WebConfig.java, allowing FileConvertQueueTask to fetch an attacker-selected URL after FileHandlerService#getFileAttribute uses the fullfilename parameter to force an OFFICE, COMPRESS, or CAD type. This issue is fixed in version 5.0.1.
References
security-advisories@github.comhttps://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709
security-advisories@github.comhttps://github.com/kekingcn/kkFileView/issues/765
security-advisories@github.comhttps://github.com/kekingcn/kkFileView/pull/767
security-advisories@github.comhttps://github.com/kekingcn/kkFileView/releases/tag/v5.0.1
security-advisories@github.comhttps://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "kkFileView",
          "vendor": "kekingcn",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.0.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "kkFileView is a universal file online preview project based on Spring Boot. Prior to 5.0.1, the unauthenticated GET /addTask endpoint in kkFileView is omitted from TrustHostFilter and TrustDirFilter in server/src/main/java/cn/keking/config/WebConfig.java, allowing FileConvertQueueTask to fetch an attacker-selected URL after FileHandlerService#getFileAttribute uses the fullfilename parameter to force an OFFICE, COMPRESS, or CAD type. This issue is fixed in version 5.0.1."
    }
  ],
  "id": "CVE-2026-73243",
  "lastModified": "2026-09-09T20:46:28.353",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-73243",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-11T20:14:19.920749Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-11T20:18:49.403",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kekingcn/kkFileView/issues/765"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kekingcn/kkFileView/pull/767"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kekingcn/kkFileView/releases/tag/v5.0.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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