What is CVE-2018-19286?

CVE-2018-19286 is a medium-severity vulnerability in Mubu Curtain, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-11-15.

How severe is CVE-2018-19286?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Mubu Curtain

CVE-2018-19286

The server in mubu note 2018-11-11 has XSS by configuring an account with a crafted name value (along with an arbitrary username value), and then creating and sharing a note.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-11-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Mubu Curtain — versions 2018-11-11

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/CCCCCrash/POCs/blob/master/Web/mubu/xss.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-19286?: CVE-2018-19286 is a medium-severity vulnerability in Mubu Curtain, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-11-15.
How severe is CVE-2018-19286?: Medium severity. CVSS v3 base score is 6.1 out of 10.