CVE-2026-23928Network attack vector

Stored XSS via unneutralized monitored item values

Published May 6, 2026 · Updated May 6, 2026

Stored XSS in the Zabbix Frontend 6.0.0 through 6.0.44, 7.0.0 through 7.0.23, and 7.4.0 through 7.4.7 allows attackers to execute JavaScript. The Item history and Plain text widgets render monitored item values as HTML without neutralizing injected script content when HTML display is enabled. Exploitation requires control of a monitored host and a user opening the affected dashboard; script actions run with that user's Zabbix permissions.

CVSS severity7.3
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in the Zabbix Frontend 6.0.0 through 6.0.44, 7.0.0 through 7.0.23, and 7.4.0 through 7.4.7 allows attackers to execute JavaScript. The Item history and Plain text widgets render monitored item values as HTML without neutralizing injected script content when HTML display is enabled. Exploitation requires control of a monitored host and a user opening the affected dashboard; script actions run with that user's Zabbix permissions.

The record

CVE
CVE-2026-23928
Published
May 6, 2026
Updated
May 6, 2026
Vendor
Zabbix
Product
Zabbix
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2026CVE publishedPublication date reported by the CVE source.
  2. May 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0.0 <=6.0.44 changes=[{"at":"6.0.45","status":"unaffected"}]
  2. Affected versionversion=7.0.0 <=7.0.23 changes=[{"at":"7.0.24","status":"unaffected"}]
  3. Affected versionversion=7.4.0 <=7.4.7 changes=[{"at":"7.4.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zabbix · Zabbixversion=6.0.0 <=6.0.44 changes=[{"at":"6.0.45","status":"unaffected"}]; version=7.0.0 <=7.0.23 changes=[{"at":"7.0.24","status":"unaffected"}]; version=7.4.0 <=7.4.7 changes=[{"at":"7.4.8","status":"unaffected"}]

Published CVSS scores

7.3ZabbixCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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