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🛡️ CVE-2026-63358 — filegator

🟠 CVSS 7.3 — High ✅ No Known Exploit CWE-732 NVD
7.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2026-63358 is classified as CWE-732: Incorrect Permission Assignment for Critical Resource. A sensitive resource is assigned permissions that let unintended actors read or modify it.

Affected software

CVE-2026-63358 is recorded against 1 package.

  • filegator (fixed in 7.14.2)

Timeline and source

Published on 21 July 2026 and last revised on 5 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com
raw.githubusercontent.com
www.cve.org

Other advisories for this package

filegator has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-732: Incorrect Permission Assignment for Critical Resource) in other software:

Details

Severity HIGH
CVSS Score 7.3
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CWE CWE-732
Public Exploit ✅ No
Source NVD
Published 2026-07-21
Updated 2026-08-20
Modified 2026-08-05

Affected Packages

Software From version Fixed in
filegator — 7.14.2

Similar Threats

Site Security Check

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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