Authenticated root escalation via unchecked chmod permissions
Published Jul 21, 2026 · Updated Jul 21, 2026
Incorrect permission assignment in FileGator before 7.14.2 allows local users with chmod permission to gain root privileges. The /chmoditems endpoint converts an arbitrary permissions value with octdec() and sends it to PHP chmod() without validating allowed Unix permission bits. An account granted the application's chmod permission is required; successful exploitation changes critical file modes and results in root-level privilege escalation.
Summary
What happened
Incorrect permission assignment in FileGator before 7.14.2 allows local users with chmod permission to gain root privileges. The /chmoditems endpoint converts an arbitrary permissions value with octdec() and sends it to PHP chmod() without validating allowed Unix permission bits. An account granted the application's chmod permission is required; successful exploitation changes critical file modes and results in root-level privilege escalation.
The record
- CVE
- CVE-2026-63358
- Published
- Jul 21, 2026
- Updated
- Jul 21, 2026
- Vendor
- FileGator
- Product
- FileGator
- Classifications
- CWE-732, T1222.001, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 21, 2026CVE publishedPublication date reported by the CVE source.
- Jul 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <7.14.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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