CRITICAL

CVE-2019-17495

CVSS v3

9.8

CRITICAL

EPSS Score

11.6%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

A Cascading Style Sheets (CSS) injection vulnerability in Swagger UI before 3.23.11 allows attackers to use the Relative Path Overwrite (RPO) technique to perform CSS-based input field value exfiltration, such as exfiltration of a CSRF token value. In other words, this product intentionally allows the embedding of untrusted JSON data from remote servers, but it was not previously known that <style>@import within the JSON data was a functional attack method.

Technical details

Published
10/10/2019

Frequently asked questions

What is CVE-2019-17495?

A Cascading Style Sheets (CSS) injection vulnerability in Swagger UI before 3.23.11 allows attackers to use the Relative Path Overwrite (RPO) technique to perform CSS-based input field value exfiltration, such as exfiltration of a CSRF token value. In other words, this product intentionally allows the embedding of untrusted JSON data from remote servers, but it was not previously known that <style>@import within the JSON data was a functional attack method.

Is CVE-2019-17495 actively exploited?

Active exploitation of CVE-2019-17495 has not been confirmed. The EPSS score is 11.6%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-17495?

CVE-2019-17495 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2019-17495 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.