{"id":"CVE-2025-50891","aliases":["EUVD-2025-28377","GHSA-87jv-7r2h-c6wf"],"status":"published","title":"Adform Site Tracking 1.1 allows attackers to inject HTML or execute arbitrary code via cookie...","description":"The server-side backend for Adform Site Tracking before 2025-08-28 allows attackers to inject HTML or execute arbitrary code via cookie hijacking. NOTE: a customer does not need to take any action to update locally installed software (such as Adform Site Tracking 1.1).","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00456,"percentile":0.39997,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77","CWE-79"],"published":"2025-08-19T00:00:00Z","modified":"2026-06-17T09:35:25Z","products":[{"vendor":"adform","product":"server-side backend for site tracking"}],"references":[{"url":"https://github.com/nikolas-ch/CVEs/tree/main/AdformTracking_ReflectedXSS"},{"url":"https://github.com/nikolas-ch/CVEs/blob/main/AdformTracking_ReflectedXSS/AdformTracking_ReflectedXSS.txt"},{"url":"https://www.adformhelp.com/hc/en-us/categories/9738364537233-Adform-Site-Tracking"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-50891"},{"url":"https://github.com/advisories/GHSA-87jv-7r2h-c6wf"}],"sources":{"cve":[{"id":"CVE-2025-50891","description":"The server-side backend for Adform Site Tracking before 2025-08-28 allows attackers to inject HTML or execute arbitrary code via cookie hijacking. NOTE: a customer does not need to take any action to update locally installed software (such as Adform Site Tracking 1.1).","status":"published","published":"2025-08-19T00:00:00Z","modified":"2025-09-18T13:06:53.359Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79","CWE-77"],"updated_at":"2026-11-02T14:32:52.526476Z"}],"euvd":[{"id":"EUVD-2025-28377","description":"The server-side backend for Adform Site Tracking before 2025-08-28 allows attackers to inject HTML or execute arbitrary code via cookie hijacking. NOTE: a customer does not need to take any action to update locally installed software (such as Adform Site Tracking 1.1).","status":"published","published":"2025-08-19T00:00:00Z","modified":"2025-09-18T13:06:53Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high"}],"updated_at":"2026-11-02T20:31:42.206486Z"}],"ghsa":[{"id":"GHSA-87jv-7r2h-c6wf","title":"Adform Site Tracking 1.1 allows attackers to inject HTML or execute arbitrary code via cookie...","description":"Adform Site Tracking 1.1 allows attackers to inject HTML or execute arbitrary code via cookie hijacking.","status":"published","published":"2025-08-19T21:30:36Z","modified":"2025-09-18T15:31:27Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-77","CWE-79"],"updated_at":"2026-11-02T15:03:39.8276Z"}],"nvd":[{"id":"CVE-2025-50891","description":"The server-side backend for Adform Site Tracking before 2025-08-28 allows attackers to inject HTML or execute arbitrary code via cookie hijacking. NOTE: a customer does not need to take any action to update locally installed software (such as Adform Site Tracking 1.1).","status":"published","published":"2025-08-19T19:15:35.673Z","modified":"2026-06-17T09:35:25.223Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79","CWE-77"],"updated_at":"2026-11-02T14:11:24.730342Z"}]}}