CVE-2026-23928

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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.zabbix.com/browse/ZBX-27760	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:zabbix:zabbix::::::::
	cpe:2.3:a:zabbix:zabbix::::::::
	cpe:2.3:a:zabbix:zabbix::::::::

History

18 Sep 2026, 15:19

Type	Values Removed	Values Added
References	~~() https://support.zabbix.com/browse/ZBX-27760 -~~	() https://support.zabbix.com/browse/ZBX-27760 - Vendor Advisory
CPE		cpe:2.3:a:zabbix:zabbix::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.8
First Time		Zabbix Zabbix zabbix

Information

Published : 2026-05-06 08:16

Updated : 2026-09-18 15:19

NVD link : CVE-2026-23928

Mitre link : CVE-2026-23928

CVE.ORG link : CVE-2026-23928

JSON object : View

Products Affected

zabbix

zabbix

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2026-23928", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23928", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-05-06T12:59:40.277558Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security@zabbix.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security@zabbix.com", "affectedData": [{"repo": "https://git.zabbix.com/", "vendor": "Zabbix", "modules": ["Frontend"], "product": "Zabbix", "versions": [{"status": "affected", "changes": [{"at": "6.0.45", "status": "unaffected"}], "version": "6.0.0", "versionType": "git", "lessThanOrEqual": "6.0.44"}, {"status": "affected", "changes": [{"at": "7.0.24", "status": "unaffected"}], "version": "7.0.0", "versionType": "git", "lessThanOrEqual": "7.0.23"}, {"status": "affected", "changes": [{"at": "7.4.8", "status": "unaffected"}], "version": "7.4.0", "versionType": "git", "lessThanOrEqual": "7.4.7"}], "defaultStatus": "unknown"}]}], "published": "2026-05-06T08:16:03.100", "references": [{"url": "https://support.zabbix.com/browse/ZBX-27760", "tags": ["Vendor Advisory"], "source": "security@zabbix.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@zabbix.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-09-18T15:19:05.330", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1E7AE210-21FF-41EE-8130-339B9541C3D7", "versionEndExcluding": "6.0.45", "versionStartIncluding": "6.0.0"}, {"criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "44821417-4549-40BA-95DB-79C174EB9D5A", "versionEndExcluding": "7.0.24", "versionStartIncluding": "7.0.0"}, {"criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "05916880-BA46-450D-A180-40D10B2C27C5", "versionEndExcluding": "7.4.8", "versionStartIncluding": "7.4.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@zabbix.com"}