{"id":"CVE-2023-50455","details":"An issue was discovered in Zammad before 6.2.0. Due to lack of rate limiting in the \"email address verification\" feature, an attacker could send many requests for a known address to cause Denial Of Service (generation of many emails, which would also spam the victim).","modified":"2026-08-12T03:51:17.767941649Z","published":"2023-12-10T00:00:00Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50455.json","unresolved_ranges":[{"source":"DESCRIPTION","extracted_events":[{"fixed":"6.2.0"}]}],"cna_assigner":"mitre"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50455.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50455"},{"type":"ADVISORY","url":"https://zammad.com/en/advisories/zaa-2023-06"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/zammad/zammad","events":[{"introduced":"ec4ddb8ae6a55d1c8e64ab5ddda9ff3e9d4f45c8"},{"last_affected":"9c250aa912971ae5832f3b8d5693774bf1e78a6f"}],"database_specific":{"source":"CPE_STRING","cpe":["cpe:2.3:a:zammad:zammad:6.1.0:-:*:*:*:*:*:*","cpe:2.3:a:zammad:zammad:6.1.0:alpha:*:*:*:*:*:*","cpe:2.3:a:zammad:zammad:6.2.0:alpha:*:*:*:*:*:*"],"extracted_events":[{"introduced":"6.1.0-NA"},{"last_affected":"6.1.0-NA"},{"introduced":"6.1.0-alpha"},{"last_affected":"6.1.0-alpha"},{"introduced":"6.2.0-alpha"},{"last_affected":"6.2.0-alpha"}]}}],"versions":["6.1.0-NA","6.1.0-alpha","6.2.0-alpha"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-50455.json"}}],"schema_version":"1.9.0"}