How severe is CVE-2019-12161?

CVE-2019-12161 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-12161 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12161?

CVE-2019-12161 affects Webpagetest. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12161?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-12161 published?

CVE-2019-12161 was published on 2019-05-17 and last updated on 2026-06-17.

CVE-2019-12161

CVE-2019-12161 is a high-severity vulnerability in Webpagetest with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 4.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Webpagetest
Published: 2019-05-17
Last modified: 2026-06-17

Description

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).

Frequently asked questions

What is 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).
How severe is CVE-2019-12161?: CVE-2019-12161 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-12161 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12161?: CVE-2019-12161 affects Webpagetest. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12161?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-12161 published?: CVE-2019-12161 was published on 2019-05-17 and last updated on 2026-06-17.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1550366

Affected products (1)

cpe:2.3:a:webpagetest:webpagetest:19.04:*:*:*:*:*:*:*

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