CVE-2019-5450

Name: CVE-2019-5450
Creator: NVD / NIST
Published: 2019-07-30T21:15:11.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2019-5450 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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 estimates a 0.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.50%

38.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud	< 3.7.0

References

https://hackerone.com/reports/631227Exploit, Third Party Advisory
https://hackerone.com/reports/631227Exploit, Third Party Advisory

Timeline

Published: Jul 30, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is 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.

How severe is CVE-2019-5450?

CVE-2019-5450 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5450?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5450?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST