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CVE-2026-23928— Stored XSS vulnerability in the Item history/Plain text widget

Quick assessment

Affected
Zabbix Zabbix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix存在跨站脚本漏洞，该漏洞源于Item history widget或Plain text widget在启用HTML显示时可以执行注入的JavaScript，可能导致攻击者根据打开包含这些部件仪表板的用户执行未授权操作。

AI Predicted 6.1 Difficulty: Moderate EPSS 0.29% · P21

Affected Version Matrix 3

VendorProduct Version RangeStatus
Zabbix Zabbix 6.0.0≤ 6.0.44 affected
7.0.0≤ 7.0.23 affected
7.4.0≤ 7.4.7 affected
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I. Basic Information for CVE-2026-23928

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Stored XSS vulnerability in the Item history/Plain text widget
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Zabbix 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix存在跨站脚本漏洞，该漏洞源于Item history widget或Plain text widget在启用HTML显示时可以执行注入的JavaScript，可能导致攻击者根据打开包含这些部件仪表板的用户执行未授权操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zabbix Zabbix 6.0.0 ~ 6.0.44 -

II. Public POCs for CVE-2026-23928

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III. Intelligence Information for CVE-2026-23928

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Vendor Advisories for CVE-2026-23928 (1)

Same Patch Batch · Zabbix · 2026-05-06 · 3 CVEs total

CVE-2026-23927 Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter
CVE-2026-23926 Stored XSS vulnerability in Host navigator widget maintenance tooltip

IV. Related Vulnerabilities

Same product: Zabbix
Same vendor: Zabbix
Same weakness: CWE-79

V. Comments for CVE-2026-23928

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