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    1 vulnerability by harung1993

    CVE-2026-125365 (GCVE-0-2026-125365)

    Vulnerability from cvelistv5 – Published: 2026-11-09 23:27 – Updated: 2026-11-09 23:27 Unsupported When Assigned
    VLAI
    Title
    DollarDollar through 4.4 Missing Authorization in /add_expense Balance Tampering
    Summary
    DollarDollar through 4.4 contains a missing authorization vulnerability in add_expense() that allows authenticated users to modify other users' account balances by supplying foreign account_id values. Attackers can submit sequential account_id, destination_account_id, and group_id values to /add_expense to tamper with balances and inject expenses into foreign groups with an arbitrary payer.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    harung1993 dollardollar Affected: 0 , ≤ 4.4 (custom)
    		Create a notification for this product.
    Date Public
    2026-11-07 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "dollardollar",
          "vendor": "harung1993",
          "versions": [
            {
              "lessThanOrEqual": "4.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-11-07T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "DollarDollar through 4.4 contains a missing authorization vulnerability in add_expense() that allows authenticated users to modify other users\u0027 account balances by supplying foreign account_id values. Attackers can submit sequential account_id, destination_account_id, and group_id values to /add_expense to tamper with balances and inject expenses into foreign groups with an arbitrary payer."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-09T23:27:37.786Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #125",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/harung1993/dollardollar/issues/125"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/harung1993/dollardollar"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/harung1993/dollardollar/blob/v4.4/app.py#L4298"
        },
        {
          "name": "VulnCheck Advisory: DollarDollar through 4.4 Missing Authorization in /add_expense Balance Tampering",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/dollardollar-through-4.4-missing-authorization-in-add-expense-balance-tampering"
        }
      ],
      "tags": [
        "unsupported-when-assigned"
      ],
      "title": "DollarDollar through 4.4 Missing Authorization in /add_expense Balance Tampering",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-125365",
    "datePublished": "2026-11-09T23:27:37.786Z",
    "dateReserved": "2026-11-09T22:03:02.055Z",
    "dateUpdated": "2026-11-09T23:27:37.786Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}