CVE-2018-18919: The WP Editor.md plugin 10.0.1 for WordPress allows XSS via the comment area.

Routine

MEDIUM 4.8DOWNGRADE

CVE-2018-18919 is a medium-severity flaw (CVSS 4.8) affecting wp editor.md. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WP Editor.md plugin 10.0.1 for WordPress allows XSS via the comment area.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-11-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: iiong

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

Am I affected?

Timeline

2018-11-04 05:29 UTCPublished CVE record published
2026-06-17 01:48 UTCUpdated Record last modified

iiong wp editor.md DOWNGRADE

Affected: 10.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0.1

1. Check installed version

apt-cache policy wp-editor.md || rpm -q wp-editor.md || wp-editor.md --version

2. No fixed release: DOWNGRADE to a release before 10.0.1 (Debian / Ubuntu)

apt-cache madison wp-editor.md sudo apt install wp-editor.md=<VERSION_BEFORE_10.0.1> sudo apt-mark hold wp-editor.md

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

dnf --showduplicates list wp-editor.md sudo dnf downgrade wp-editor.md-<VERSION_BEFORE_10.0.1> sudo dnf versionlock add wp-editor.md

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-2018-18919?

wp editor.md: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-18919 being exploited?

CVE-2018-18919 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-2018-18919 affect?

CVE-2018-18919 affects wp editor.md. Severity is medium (CVSS 4.8). The WP Editor.md plugin 10.0.1 for WordPress allows XSS via the comment area.

How urgent is CVE-2018-18919?

Priority 36/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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