Detections
Analytics

Zabbix 6.0.x < 6.0.45 Multiple Vulnerabilities

high Web App Scanning Plugin ID 115511

Synopsis

Zabbix 6.0.x < 6.0.45 Multiple Vulnerabilities

Description

According to its self-reported version number, the version of Zabbix running on the remote host is 6.0.x prior to 6.0.45, or 7.0.x prior to 7.0.24, or 7.4.x prior to 7.4.8. It is, therefore, affected by multiple vulnerabilities :

- A stored cross-site scripting (XSS) vulnerability in the Host navigator widget maintenance tooltip, as an authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user opening the tooltip for that maintenance period. (CVE-2026-23926)

- A stored cross-site scripting (XSS) vulnerability in the Item history widget (Zabbix 7.0 and later) or the Plain text widget (Zabbix 6.0), which can execute injected JavaScript when HTML display is enabled. The malicious JavaScript has to come from a monitored host controlled by the attacker. (CVE-2026-23928)

- An insufficiently protected credentials vulnerability in the Agent 2 Oracle plugin, as a user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter, causing Agent 2 to connect to an attacker-controlled server and leak Oracle database credentials saved in a named session. (CVE-2026-23927)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Zabbix version 6.0.45 or later.

See Also

https://www.zabbix.com/security_advisories?query=ZBV-2026-05-06-1

https://www.zabbix.com/security_advisories?query=ZBV-2026-05-06-2

https://www.zabbix.com/security_advisories?query=ZBV-2026-05-06-3

Plugin Details

Severity: High

ID: 115511

Type: Version Based

Published: 9/23/2026

Updated: 9/23/2026

Scan Template: basic, full, pci, scan

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.27

CVSS v2

Risk Factor: High

Base Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-23926

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2026-23926

CVSS v4

Risk Factor: High

Base Score: 7.3

Vector: 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

CVSS Score Source: CVE-2026-23926

Vulnerability Information

CPE: cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Patch Publication Date: 5/6/2026

Vulnerability Publication Date: 5/5/2026

Reference Information

CVE: CVE-2026-23926, CVE-2026-23927, CVE-2026-23928