What is CVE-2019-12161?

CVE-2019-12161 is a high-severity vulnerability in Webpagetest, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.8/10. Published 2019-05-17.

How severe is CVE-2019-12161?

High severity. CVSS v3 base score is 8.8 out of 10.

SSRF in Webpagetest

CVE-2019-12161

WPO WebPageTest 19.04 allows SSRF because ValidateURL in www/runtest.php does not consider octal encoding of IP addresses (such as 0300.0250 as a replacement for 192.168).

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2019-05-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (63.0th percentile), scored 2026-10-06.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Webpagetest — versions 19.04

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

bugzilla.mozilla.org/show_bug.cgi (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2019-12161?: CVE-2019-12161 is a high-severity vulnerability in Webpagetest, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.8/10. Published 2019-05-17.
How severe is CVE-2019-12161?: High severity. CVSS v3 base score is 8.8 out of 10.