FKIE_CVE-2026-119661

Vulnerability from fkie_nvd - Published: 2026-10-30 15:16 - Updated: 2026-10-30 19:23
Severity
4.2 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Summary
ShowDoc through 3.9.5 contains an authorization bypass vulnerability in the api/paramDescLib/deleteEntries endpoint that checks edit permission only for the first supplied entry id. Authenticated attackers can place their own entry id first and append other users' entry ids to permanently delete those parameter-description entries.
References
disclosure@vulncheck.comhttps://github.com/star7th/showdoc
disclosure@vulncheck.comhttps://github.com/star7th/showdoc/blob/v3.9.5/server/app/Api/Controller/ParamDescLibController.php#L545-L584
disclosure@vulncheck.comhttps://github.com/star7th/showdoc/commit/53228511e656904abf7841c3d25ff78a4b5ce9c2
disclosure@vulncheck.comhttps://github.com/star7th/showdoc/issues/2612
disclosure@vulncheck.comhttps://hackmd.io/@hieuPenguinnn/showdoc-paramdesclib-cross-item-idor-delete
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/showdoc-through-3.9.5-authorization-bypass-via-paramdesclib-deleteentries
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/star7th/showdoc",
          "product": "ShowDoc",
          "repo": "https://github.com/star7th/showdoc",
          "vendor": "star7th",
          "versions": [
            {
              "lessThanOrEqual": "3.9.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ShowDoc through 3.9.5 contains an authorization bypass vulnerability in the api/paramDescLib/deleteEntries endpoint that checks edit permission only for the first supplied entry id. Authenticated attackers can place their own entry id first and append other users\u0027 entry ids to permanently delete those parameter-description entries."
    }
  ],
  "id": "CVE-2026-119661",
  "lastModified": "2026-10-30T19:23:25.493",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 4.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 2.5,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-119661",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-30T15:21:25.839972Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-30T15:16:50.360",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/star7th/showdoc"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/star7th/showdoc/blob/v3.9.5/server/app/Api/Controller/ParamDescLibController.php#L545-L584"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/star7th/showdoc/commit/53228511e656904abf7841c3d25ff78a4b5ce9c2"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/star7th/showdoc/issues/2612"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://hackmd.io/@hieuPenguinnn/showdoc-paramdesclib-cross-item-idor-delete"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/showdoc-through-3.9.5-authorization-bypass-via-paramdesclib-deleteentries"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}



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