CVE-2018-1000542: netbeans-mmd-plugin version <= 1.4.3 contains a XML External Entity (XXE) vulnerability in MMD file import tha

Q: How urgent is CVE-2018-1000542?

Priority 54/100. High severity; Public exploit reference

This month

HIGH 7.8DOWNGRADE

CVE-2018-1000542 is a high-severity flaw (CVSS 7.8) affecting netbeans-mmd-plugin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

netbeans-mmd-plugin version <= 1.4.3 contains a XML External Entity (XXE) vulnerability in MMD file import that can result in Possible information disclosure, server-side request forgery, or remote code execution. This attack appear to be exploitable via Specially crafted MMD file.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Weakness	CWE-611
Published	2018-06-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netbeans-mmd-plugin project

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

Am I affected?

Timeline

2018-06-26 16:29 UTCPublished CVE record published
2026-06-17 01:32 UTCUpdated Record last modified

netbeans-mmd-plugin project netbeans-mmd-plugin DOWNGRADE

Affected: 1.4.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.3

1. Check installed version

apt-cache policy netbeans-mmd-plugin || rpm -q netbeans-mmd-plugin || netbeans-mmd-plugin --version

2. No fixed release: DOWNGRADE to a release before 1.4.3 (Debian / Ubuntu)

apt-cache madison netbeans-mmd-plugin sudo apt install netbeans-mmd-plugin=<VERSION_BEFORE_1.4.3> sudo apt-mark hold netbeans-mmd-plugin

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list netbeans-mmd-plugin sudo dnf downgrade netbeans-mmd-plugin-<VERSION_BEFORE_1.4.3> sudo dnf versionlock add netbeans-mmd-plugin

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2018-1000542?

netbeans-mmd-plugin: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-1000542 being exploited?

CVE-2018-1000542 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-2018-1000542 affect?

CVE-2018-1000542 affects netbeans-mmd-plugin. Severity is high (CVSS 7.8). netbeans-mmd-plugin version <= 1.4.3 contains a XML External Entity (XXE) vulnerability in MMD file import that can result in Possible information disclosure, server-side request forgery, or remote code execution. This attack appear to be e

How urgent is CVE-2018-1000542?

Priority 54/100. High severity; Public exploit reference

References

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