{"id":"CVE-2026-66002","aliases":["EUVD-2026-63541","GHSA-c2xv-c53h-qvr5"],"status":"published","title":"Frappe: User Enumeration via PDDR","description":"Frappe is a full-stack web application framework. Prior to 15.115.0 and 16.27.0, the public request-data web form and PersonalDataDownloadRequest class in frappe/website/doctype/personal_data_download_request/personal_data_download_request.py return distinguishable response shapes for registered and unregistered email addresses, including the user_name field and persistence behavior. A remote attacker can compare the responses to enumerate registered users. This issue is fixed in versions 15.115.0 and 16.27.0.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00823,"percentile":0.57605,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-204"],"published":"2026-08-20T18:29:40Z","modified":"2026-10-28T02:30:32Z","products":[{"vendor":"elated-themes","product":"frappe"},{"vendor":"frappe","product":"frappe"}],"references":[{"url":"https://github.com/frappe/frappe/security/advisories/GHSA-c2xv-c53h-qvr5","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/frappe/frappe/pull/40787","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/frappe/frappe/pull/40814","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/frappe/frappe/pull/40815","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/frappe/frappe/commit/30fe0b4118ff94c95c239dce4bc74ec4ca10a827","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/frappe/frappe/commit/47a396ec59f5362029feb349eb2b9d10a21afcf8","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/frappe/frappe/commit/4b32a4e0072e61ce0abcb0d09cfd1f14724fe896","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/frappe/frappe/releases/tag/v15.115.0","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/frappe/frappe/releases/tag/v16.27.0","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66002.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66002","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-66002","title":"Frappe: User Enumeration via PDDR","description":"Frappe is a full-stack web application framework. Prior to 15.115.0 and 16.27.0, the public request-data web form and PersonalDataDownloadRequest class in frappe/website/doctype/personal_data_download_request/personal_data_download_request.py return distinguishable response shapes for registered and unregistered email addresses, including the user_name field and persistence behavior. A remote attacker can compare the responses to enumerate registered users. This issue is fixed in versions 15.115.0 and 16.27.0.","status":"published","published":"2026-08-20T18:29:40.872Z","modified":"2026-08-21T21:46:12.905Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-204"],"updated_at":"2026-11-02T14:20:12.939084Z"}],"euvd":[{"id":"EUVD-2026-63541","description":"Frappe is a full-stack web application framework. Prior to 15.115.0 and 16.27.0, the public request-data web form and PersonalDataDownloadRequest class in frappe/website/doctype/personal_data_download_request/personal_data_download_request.py return distinguishable response shapes for registered and unregistered email addresses, including the user_name field and persistence behavior. A remote attacker can compare the responses to enumerate registered users. This issue is fixed in versions 15.115.0 and 16.27.0.","status":"published","published":"2026-08-20T18:29:40Z","modified":"2026-08-21T21:46:12Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:01:36.505605Z"}],"nvd":[{"id":"CVE-2026-66002","description":"Frappe is a full-stack web application framework. Prior to 15.115.0 and 16.27.0, the public request-data web form and PersonalDataDownloadRequest class in frappe/website/doctype/personal_data_download_request/personal_data_download_request.py return distinguishable response shapes for registered and unregistered email addresses, including the user_name field and persistence behavior. A remote attacker can compare the responses to enumerate registered users. This issue is fixed in versions 15.115.0 and 16.27.0.","status":"published","published":"2026-08-20T19:16:58.187Z","modified":"2026-10-26T10:10:00.14Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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","level":"medium","assessor":"secondary"}],"cwes":["CWE-204"],"updated_at":"2026-11-02T14:12:40.302911Z"}],"osv":[{"id":"CVE-2026-66002","title":"Frappe: User Enumeration via PDDR","description":"Frappe is a full-stack web application framework. Prior to 15.115.0 and 16.27.0, the public request-data web form and PersonalDataDownloadRequest class in frappe/website/doctype/personal_data_download_request/personal_data_download_request.py return distinguishable response shapes for registered and unregistered email addresses, including the user_name field and persistence behavior. A remote attacker can compare the responses to enumerate registered users. This issue is fixed in versions 15.115.0 and 16.27.0.","status":"published","published":"2026-08-20T18:29:40.872Z","modified":"2026-10-28T02:30:32.286937537Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-204"],"updated_at":"2026-11-02T15:45:14.46177Z"}]}}