What is CVE-2018-18919?

CVE-2018-18919 is a medium-severity vulnerability in Iiong Wp Editor.md, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-11-04.

How severe is CVE-2018-18919?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2018-18919 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Iiong Wp Editor.md

CVE-2018-18919

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

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-11-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Iiong Wp Editor.md — versions 10.0.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

github.com/JaxsonWang/WP-Editor.md/issues/275 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18919?: CVE-2018-18919 is a medium-severity vulnerability in Iiong Wp Editor.md, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-11-04.
How severe is CVE-2018-18919?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2018-18919 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.