CVE-2018-18289: The MESILAT Zabbix plugin before 1.1.15 for Atlassian Confluence allows attackers to read arbitrary files.

Q: How do I fix CVE-2018-18289?

zabbix: upgrade to 1.1.15. Exact commands for each OS are on this page.

Q: Is CVE-2018-18289 being exploited?

CVE-2018-18289 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-18289 affect?

CVE-2018-18289 affects zabbix. Severity is high (CVSS 7.5). The MESILAT Zabbix plugin before 1.1.15 for Atlassian Confluence allows attackers to read arbitrary files.

Q: How urgent is CVE-2018-18289?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2018-18289 is a high-severity flaw (CVSS 7.5) affecting zabbix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The MESILAT Zabbix plugin before 1.1.15 for Atlassian Confluence allows attackers to read arbitrary files.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-200
Published	2018-10-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mesilat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-10-14 21:29 UTCPublished CVE record published
2026-06-17 01:46 UTCUpdated Record last modified

mesilat zabbix UPGRADE

Affected: < 1.1.15

Fixed in: 1.1.15

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zabbix || rpm -q zabbix || zabbix --version

2. UPGRADE to 1.1.15 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zabbix

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zabbix

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-18289?

zabbix: upgrade to 1.1.15. Exact commands for each OS are on this page.

Is CVE-2018-18289 being exploited?

CVE-2018-18289 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-18289 affect?

CVE-2018-18289 affects zabbix. Severity is high (CVSS 7.5). The MESILAT Zabbix plugin before 1.1.15 for Atlassian Confluence allows attackers to read arbitrary files.

How urgent is CVE-2018-18289?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

Software pages

Atlassian Confluence vulnerabilities · Zabbix vulnerabilities

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References

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