{"id":"CVE-2025-42605","aliases":["EUVD-2025-12240","GHSA-26g6-6369-5jmc"],"status":"published","title":"Improper Access Control Vulnerability in Meon Bidding Solutions","description":"This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.\n\nSuccessful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0049,"percentile":0.42638,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-639"],"published":"2025-04-23T10:51:00Z","modified":"2026-06-17T09:23:09Z","products":[{"vendor":"meon","product":"bidding solutions"}],"references":[{"url":"https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01\u0026VLCODE=CIVN-2025-0082","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-42605"},{"url":"https://github.com/advisories/GHSA-26g6-6369-5jmc"}],"sources":{"cve":[{"id":"CVE-2025-42605","title":"Improper Access Control Vulnerability in Meon Bidding Solutions","description":"This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.\n\nSuccessful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.","status":"published","published":"2025-04-23T10:51:00.255Z","modified":"2025-04-23T14:26:50.939Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:32:30.9782Z"}],"euvd":[{"id":"EUVD-2025-12240","description":"This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.\n\nSuccessful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.","status":"published","published":"2025-04-23T10:51:00Z","modified":"2025-04-23T14:26:50Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","level":"critical"}],"updated_at":"2026-11-02T20:52:14.077439Z"}],"ghsa":[{"id":"GHSA-26g6-6369-5jmc","title":"This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on...","description":"This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.\n\nSuccessful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.","status":"published","published":"2025-04-23T12:31:25Z","modified":"2025-04-23T12:31:31Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/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","level":"critical"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:02:00.180386Z"}],"nvd":[{"id":"CVE-2025-42605","description":"This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.\n\nSuccessful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.","status":"published","published":"2025-04-23T11:15:47.327Z","modified":"2026-06-17T09:23:09.34Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/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","level":"critical","assessor":"secondary"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:11:01.507281Z"}]}}