What is CVE-2019-5450?

CVE-2019-5450 is a medium-severity vulnerability in Nextcloud, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.8/10. Published 2019-07-30.

How severe is CVE-2019-5450?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Nextcloud

CVE-2019-5450

Improper sanitization of HTML in directory names in the Nextcloud Android app prior to version 3.7.0 allowed to style the directory name in the header bar when using basic HTML.

EPSS: 0.005 (39.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nextcloud
N/a Com.nextcloud.client — versions 3.7.0

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-79 — Cross-site Scripting

References

support@hackerone.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-5450?: CVE-2019-5450 is a medium-severity vulnerability in Nextcloud, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.8/10. Published 2019-07-30.
How severe is CVE-2019-5450?: Medium severity. CVSS v3 base score is 6.8 out of 10.