XSS in Etherpad

CVE-2019-18209

templates/pad.html in Etherpad-Lite 1.7.5 has XSS when the browser does not encode the path of the URL, as demonstrated by Internet Explorer.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (48.7th percentile) — read the EPSS interpretation.

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.

Affected products

Etherpad — versions 1.7.5
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-18209?: CVE-2019-18209 is a medium-severity vulnerability in Etherpad, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-10-19.
How severe is CVE-2019-18209?: Medium severity. CVSS v3 base score is 6.1 out of 10.