CVE-2019-15587

Name: CVE-2019-15587
Creator: NVD / NIST
Published: 2019-10-22T21:15:10.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 1.45%

Last modified Jun 17, 2026

CVE-2019-15587 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In the Loofah gem for Ruby through v2.3.0 unsanitized JavaScript may occur in sanitized output when a crafted SVG element is republished.. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

Description

In the Loofah gem for Ruby through v2.3.0 unsanitized JavaScript may occur in sanitized output when a crafted SVG element is republished.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.45%

70.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Loofah Project	Loofah	<= 2.3.0
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Canonical	Ubuntu Linux	16.04
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

https://github.com/flavorjones/loofah/issues/171Third Party Advisory
https://hackerone.com/reports/709009Permissions Required, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4WK2UG7ORKRQOJ6E4XJ2NVIHYJES6BYZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMCWPLYPNIWYAY443IZZJ4IHBBLIHBP5/
https://security.netapp.com/advisory/ntap-20191122-0003/Third Party Advisory
https://usn.ubuntu.com/4498-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4554Third Party Advisory
https://github.com/flavorjones/loofah/issues/171Third Party Advisory
https://hackerone.com/reports/709009Permissions Required, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4WK2UG7ORKRQOJ6E4XJ2NVIHYJES6BYZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMCWPLYPNIWYAY443IZZJ4IHBBLIHBP5/
https://security.netapp.com/advisory/ntap-20191122-0003/Third Party Advisory
https://usn.ubuntu.com/4498-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4554Third Party Advisory

Timeline

Published: Oct 22, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-15587?

In the Loofah gem for Ruby through v2.3.0 unsanitized JavaScript may occur in sanitized output when a crafted SVG element is republished.

How severe is CVE-2019-15587?

CVE-2019-15587 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15587?

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-2019-15587?

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

Scan your code now

Source: NVD / NIST