{"cve":"CVE-2018-19830","nvd":{"published":"2019-12-31T16:15:11.167","modified":"2026-06-17T01:49:57.497","status":"Modified","description":"The UBSexToken() function of a smart contract implementation for Business Alliance Financial Circle (BAFC), an tradable Ethereum ERC20 token, allows attackers to change the owner of the contract, because the function is public (by default) and does not check the caller's identity.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-862"],"references":["https://github.com/SmartContractResearcher/SmartContractSecurity/blob/master/New%20Vulnerabilities%20Allow%20Anyone%20to%20Own%20Certain%20ERC20-Based%20Smart%20Contracts%28CVE-2018-19830%2C%20CVE-2018-19831%2C%20CVE-2018-19832%2C%20CVE-2018-19833%2C%20CVE-2018-19834%29/README.md","https://github.com/SmartContractResearcher/SmartContractSecurity/blob/master/New%20Vulnerabilities%20Allow%20Anyone%20to%20Own%20Certain%20ERC20-Based%20Smart%20Contracts%28CVE-2018-19830%2C%20CVE-2018-19831%2C%20CVE-2018-19832%2C%20CVE-2018-19833%2C%20CVE-2018-19834%29/README.md"],"products":["business_alliance_financial_circle_project:business_alliance_financial_circle"],"source":"nvd","synced_at":"2026-10-19T21:01:01.339895972+00:00"},"epss":{"cve":"CVE-2018-19830","score":0.00931,"percentile":0.60637,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}