Medium
Security advisory
The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enabled. This can allow an attacker to perform unauthorized actions depending on which user opens a dashboard containing these widgets. The malicious JavaScript would have to come from a monitored host controlled by the attacker. Note: the Item history widget is a replacement for the Plain text widget since Zabbix 7.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-23928
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:30 UTC · Revision 1
Source evidence
The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enabled. This can allow an attacker to perform unauthorized actions depending on which user opens a dashboard containing these widgets. The malicious JavaScript would have to come from a monitored host controlled by the attacker. Note: the Item history widget is a replacement for the Plain text widget since Zabbix 7.0.
osv:CVE-2026-23928
Complete source record
{
"id": "9f783633cf0182e69cc31fac272475b447a37ee39bd0081182e837cff513a02f",
"url": "https://osv.dev/vulnerability/CVE-2026-23928",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-23928",
"summary": "The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enabled. This can allow an attacker to perform unauthorized actions depending on which user opens a dashboard containing these widgets. The malicious JavaScript would have to come from a monitored host controlled by the attacker. Note: the Item history widget is a replacement for the Plain text widget since Zabbix 7.0.",
"evidence": "osv:CVE-2026-23928",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-23928",
"aliases": [
"CVE-2026-23928"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
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"repo": "https://github.com/zabbix/zabbix",
"type": "GIT",
"events": [
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{
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},
{
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{
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{
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23928.json",
"vanir_signatures": [
{
"id": "CVE-2026-23928-3c3866b9",
"digest": {
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"source": "https://github.com/zabbix/zabbix/commit/6b0f6b25da00d2c2a0dc2035ba2285aa51c85865",
"target": {
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},
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"signature_type": "Line",
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{
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"digest": {
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{
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"vanir_signatures_modified": "2026-10-24T14:58:35Z"
}
}
],
"modified": "2026-10-24T14:58:35.573738940Z",
"provider": "osv",
"references": [
"https://support.zabbix.com/browse/ZBX-27760"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-23928",
"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443900,
"published_at": "2026-05-06T08:16:03.1+00:00"
}