CVE-2019-17199: www/getfile.php in WPO WebPageTest 19.04 on Windows allows Directory Traversal (for reading arbitrary files) b

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HIGH 7.5REMOTEDOWNGRADE

CVE-2019-17199 is a high-severity flaw (CVSS 7.5) affecting webpagetest. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

www/getfile.php in WPO WebPageTest 19.04 on Windows allows Directory Traversal (for reading arbitrary files) because of an unanchored regular expression, as demonstrated by the a.jpg\.. substring.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	10.0% (top 4%)
CISA exploited list	No
Weakness	CWE-22
Published	2019-10-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: webpagetest

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-10-05 20:15 UTCPublished CVE record published
2026-06-17 02:23 UTCUpdated Record last modified

webpagetest webpagetest DOWNGRADE

Affected: 19.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 19.04

1. Check installed version

apt-cache policy webpagetest || rpm -q webpagetest || webpagetest --version

2. No fixed release: DOWNGRADE to a release before 19.04 (Debian / Ubuntu)

apt-cache madison webpagetest sudo apt install webpagetest=<VERSION_BEFORE_19.04> sudo apt-mark hold webpagetest

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list webpagetest sudo dnf downgrade webpagetest-<VERSION_BEFORE_19.04> sudo dnf versionlock add webpagetest

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Metasploit: WebPageTest Directory Traversal

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-17199?

webpagetest: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-17199 being exploited?

CVE-2019-17199 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-17199 affect?

CVE-2019-17199 affects webpagetest. Severity is high (CVSS 7.5). www/getfile.php in WPO WebPageTest 19.04 on Windows allows Directory Traversal (for reading arbitrary files) because of an unanchored regular expression, as demonstrated by the a.jpg\.. substring.

How urgent is CVE-2019-17199?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities · Windows vulnerabilities

Related CVEs

CVE-2019-12161 HIGH 8.8 DOWNGRADE WPO WebPageTest 19.04 allows SSRF because ValidateURL in www/runtest.php does not consider octal encoding of I

References

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