{"id":"CVE-2026-23926","details":"An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.","modified":"2026-09-20T14:24:11.530137Z","published":"2026-05-06T08:16:01.837Z","references":[{"type":"ADVISORY","url":"https://support.zabbix.com/browse/ZBX-27758"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/zabbix/zabbix","events":[{"introduced":"49955f1fb5c9168a8a24b053f7ade6b3d903143c"},{"fixed":"36bdd34b378e8731c7c825df38c364e00a76e6a5"},{"introduced":"372a4e93c48ecd25aa666949a055a02369031861"},{"fixed":"6b0f6b25da00d2c2a0dc2035ba2285aa51c85865"}],"database_specific":{"cpe":"cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"7.0.0"},{"fixed":"7.0.24"},{"introduced":"7.4.0"},{"fixed":"7.4.8"}],"source":"CPE_RANGE"}}],"versions":["7.4.8rc3","7.0.24rc3","7.4.8rc2","7.0.24rc2","7.4.8rc1","7.0.24rc1","7.0.23","7.4.7","7.4.7rc3","7.4.7rc2","7.0.23rc2","7.0.23rc1","7.4.7rc1","7.4.6","7.0.22","7.0.22rc3","7.4.6rc2","7.4.6rc1","7.0.22rc2","7.0.22rc1","7.0.20","7.0.21","7.4.5","7.4.4","7.0.20rc1","7.4.4rc1","7.0.19","7.4.3","7.4.3rc1","7.0.19rc1","7.4.2","7.0.18","7.0.18rc2","7.4.2rc2","7.0.18rc1","7.4.2rc1","7.4.1","7.0.17","7.4.1rc1","7.0.17rc2","7.0.17rc1","7.0.16","7.0.15","7.4.0","7.0.14","7.0.14rc1","7.0.13","7.0.13rc1","7.0.12","7.0.12rc1","7.0.11","7.0.11rc2","7.0.11rc1","7.0.10","7.0.10rc1","7.0.9","7.0.9rc2","7.0.9rc1","7.0.8","7.0.8rc2","7.0.8rc1","7.0.7","7.0.7rc1","7.0.6","7.0.6rc1","7.0.5","7.0.5rc1","7.0.4","7.0.4rc1","7.0.3","7.0.3rc1","7.0.2","7.0.2rc2","7.0.2rc1","7.0.1","7.0.1rc2","7.0.1rc1","7.0.0"],"database_specific":{"vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["2575989339259640105311353590351376328","261745388088049729003388450910874131284","78615119555629258408370069502963169562","106265636532305374733445754623506502550","142981670864924541529460717571059194747","276456720699755867738555225603931221904"],"threshold":0.9},"id":"CVE-2026-23926-3c3866b9","signature_type":"Line","signature_version":"v1","source":"https://github.com/zabbix/zabbix/commit/6b0f6b25da00d2c2a0dc2035ba2285aa51c85865","target":{"file":"src/zabbix_java/src/com/zabbix/gateway/GeneralInformation.java"}},{"digest":{"line_hashes":["328694341909655700810807882163230140941","12061819213497335241319149757757382988","8781501731097225876935453466613140553","132482256639643116861018651525990961205","188121564415475832297632590253969155136","36080719019429417973525356404344529663"],"threshold":0.9},"id":"CVE-2026-23926-92c6c503","signature_type":"Line","signature_version":"v1","source":"https://github.com/zabbix/zabbix/commit/36bdd34b378e8731c7c825df38c364e00a76e6a5","target":{"file":"src/zabbix_java/src/com/zabbix/gateway/GeneralInformation.java"},"deprecated":false}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23926.json","vanir_signatures_modified":"2026-09-20T14:24:11Z"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H"}]}