CVE-2019-7216: An issue was discovered in FileChucker 4.99e-free-e02

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HIGH 7.8DOWNGRADE

CVE-2019-7216 is a high-severity flaw (CVSS 7.8) affecting filechucker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in FileChucker 4.99e-free-e02. filechucker.cgi has a filter bypass that allows a malicious user to upload any type of file by using % characters within the extension, e.g., file.%ph%p becomes file.php.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Published	2019-01-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: encodable

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

Am I affected?

Timeline

2019-01-31 09:29 UTCPublished CVE record published
2026-06-17 02:40 UTCUpdated Record last modified

encodable filechucker DOWNGRADE

Affected: 4.99e-free-e02 · 5.09

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.99e-free-e02

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.99e-free-e02 (Debian / Ubuntu)

apt-cache madison filechucker sudo apt install filechucker=<VERSION_BEFORE_4.99e-free-e02> sudo apt-mark hold filechucker

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

dnf --showduplicates list filechucker sudo dnf downgrade filechucker-<VERSION_BEFORE_4.99e-free-e02> sudo dnf versionlock add filechucker

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.

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-2019-7216?

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

Is CVE-2019-7216 being exploited?

CVE-2019-7216 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-2019-7216 affect?

CVE-2019-7216 affects filechucker. Severity is high (CVSS 7.8). An issue was discovered in FileChucker 4.99e-free-e02. filechucker.cgi has a filter bypass that allows a malicious user to upload any type of file by using % characters within the extension, e.g., file.%ph%p becomes file.php.

How urgent is CVE-2019-7216?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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