{"id":"CVE-2026-23923","details":"An unauthenticated attacker can exploit the Frontend 'validate' action to blindly instantiate arbitrary PHP classes. The impact depends on environment setup but appears limited at this time.","modified":"2026-09-12T08:14:50.240954Z","published":"2026-03-24T19:16:50.740Z","references":[{"type":"ADVISORY","url":"https://support.zabbix.com/browse/ZBX-27641"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/zabbix/zabbix","events":[{"introduced":"372a4e93c48ecd25aa666949a055a02369031861"},{"fixed":"b033beafb23d83ecb4e90a9b6f9ea856e9215566"}],"database_specific":{"cpe":"cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"7.4.0"},{"fixed":"7.4.7"}],"source":"CPE_RANGE"}}],"versions":["7.4.7rc3","7.4.7rc2","7.4.7rc1","7.4.6","7.4.6rc2","7.4.6rc1","7.4.5","7.4.4","7.4.4rc1","7.4.3","7.4.3rc1","7.4.2","7.4.2rc2","7.4.2rc1","7.4.1","7.4.1rc1","7.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23923.json","vanir_signatures_modified":"2026-09-12T08:14:50Z","vanir_signatures":[{"signature_version":"v1","source":"https://github.com/zabbix/zabbix/commit/b033beafb23d83ecb4e90a9b6f9ea856e9215566","target":{"file":"src/zabbix_java/src/com/zabbix/gateway/GeneralInformation.java"},"deprecated":false,"digest":{"line_hashes":["325384714460559008211380272189886777379","161202494417122568768003688957558185717","78613746942143536196276371120859374090","98679310835563898350721270856285671786","113434350780301213082882425875976030982","296560762299850979029643899112001044678"],"threshold":0.9},"id":"CVE-2026-23923-234b3a70","signature_type":"Line"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}