SB2026051010 - Fedora EPEL 8 update for zabbix6.0

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Main Vulnerability Database SB2026051010

SB2026051010 - Fedora EPEL 8 update for zabbix6.0

Published: May 10, 2026

Security Bulletin ID SB2026051010
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Cross-site scripting (CVE-ID: CVE-2026-23928)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear


The vulnerability allows a remote user to perform unauthorized actions.

The vulnerability exists due to cross-site scripting in the Item history/Plain text widget when rendering monitored host data with HTML display enabled. A remote privileged user can send a malicious JavaScript payload from a controlled monitored host to perform unauthorized actions.

User interaction is required, and exploitation occurs when a user opens a dashboard containing the affected widget.


2) Input validation error (CVE-ID: CVE-2026-23927)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to improper input validation in the Agent 2 Oracle plugin when processing the 'service' parameter in TNS connection strings. A remote privileged user can send a specially crafted request to disclose sensitive information.

Exploitation can cause Agent 2 to connect to an attacker-controlled server and leak Oracle database credentials if they are saved in a named session.


Remediation

Install update from vendor's website.

References