CVE-2022-40797: Roxy Fileman 1.4.6 allows Remote Code Execution via a .phar upload, because the default FORBIDDEN_UPLOADS valu

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-40797 is a critical-severity flaw (CVSS 9.8) affecting roxy fileman. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Roxy Fileman 1.4.6 allows Remote Code Execution via a .phar upload, because the default FORBIDDEN_UPLOADS value in conf.json only blocks .php, .php4, and .php5 files. (Visiting any .phar file invokes the PHP interpreter in some realistic web-server configurations.)

Why this priority

Critical severity
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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Weakness	CWE-434
Published	2022-11-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: roxyfileman

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

Am I affected?

Timeline

2022-11-09 07:15 UTCPublished CVE record published
2026-06-17 05:02 UTCUpdated Record last modified

roxyfileman roxy fileman DOWNGRADE

Affected: 1.4.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.6

1. Check installed version

apt-cache policy roxy-fileman || rpm -q roxy-fileman || roxy-fileman --version

2. No fixed release: DOWNGRADE to a release before 1.4.6 (Debian / Ubuntu)

apt-cache madison roxy-fileman sudo apt install roxy-fileman=<VERSION_BEFORE_1.4.6> sudo apt-mark hold roxy-fileman

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

dnf --showduplicates list roxy-fileman sudo dnf downgrade roxy-fileman-<VERSION_BEFORE_1.4.6> sudo dnf versionlock add roxy-fileman

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-2022-40797?

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

Is CVE-2022-40797 being exploited?

CVE-2022-40797 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-2022-40797 affect?

CVE-2022-40797 affects roxy fileman. Severity is critical (CVSS 9.8). Roxy Fileman 1.4.6 allows Remote Code Execution via a .phar upload, because the default FORBIDDEN_UPLOADS value in conf.json only blocks .php, .php4, and .php5 files. (Visiting any .phar file invokes the PHP interpreter in some realistic we

How urgent is CVE-2022-40797?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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