CVE-2026-63358: FileGator accepts arbitrary Unix permission values via the '/chmoditems' API endpoint and passes the value dir

Q: How do I fix CVE-2026-63358?

filegator: upgrade to 7.14.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-63358 being exploited?

CVE-2026-63358 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-63358 affect?

CVE-2026-63358 affects filegator. Severity is high (CVSS 7.3). FileGator accepts arbitrary Unix permission values via the '/chmoditems' API endpoint and passes the value directly to PHP's native 'chmod()' function through 'octdec()' conversion, with no validation. This allows an authenticated user with

Routine

HIGH 7.3UPGRADE

CVE-2026-63358 is a high-severity flaw (CVSS 7.3) affecting filegator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FileGator accepts arbitrary Unix permission values via the '/chmoditems' API endpoint and passes the value directly to PHP's native 'chmod()' function through 'octdec()' conversion, with no validation. This allows an authenticated user with 'chmod' permission to upgrade their privileges to root.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-732
Published	2026-07-21
Last modified	2026-08-05

Publisher (CNA): Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government · Vendor: filegator

Last updated 2026-08-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-21 21:16 UTCPublished CVE record published
2026-08-05 19:44 UTCUpdated Record last modified

filegator filegator UPGRADE

Affected: < 7.14.2

Fixed in: 7.14.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 7.14.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade filegator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade filegator

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

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

Nuclei scan template: FileGator < 7.14.2 - Privilege Escalation

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-2026-63358?

filegator: upgrade to 7.14.2. Exact commands for each OS are on this page.

Is CVE-2026-63358 being exploited?

CVE-2026-63358 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-2026-63358 affect?

CVE-2026-63358 affects filegator. Severity is high (CVSS 7.3). FileGator accepts arbitrary Unix permission values via the '/chmoditems' API endpoint and passes the value directly to PHP's native 'chmod()' function through 'octdec()' conversion, with no validation. This allows an authenticated user with

How urgent is CVE-2026-63358?

Priority 36/100. High severity

Software pages

PHP vulnerabilities

References

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