Security Resilience

CVE-2023-39965

Access Control in Fit2Cloud 1Panel 1.4.3

Public PoCAccess Control
Published
10 August 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
EPSS Score 0.0044 37th percentile
Risk Priority 47 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-39965 is a medium-severity Incorrect Authorization (CWE-863) vulnerability in Fit2Cloud 1Panel. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 37th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

1Panel is an open source Linux server operation and maintenance management panel. In version 1.4.3, authenticated attackers can download arbitrary files through the API interface. This code has unauthorized access. Attackers can freely download the file content on the target…

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system. This may cause a large amount of information leakage. Version 1.5.0 has a patch for this issue.

CWE(s)

Related Threats

CVEs Like This One

CVE-2024-27288Same product: Fit2Cloud 1Panel
CVE-2023-39964Same product: Fit2Cloud 1Panel
CVE-2025-34429Same product: Fit2Cloud 1Panel
CVE-2024-30257Same product: Fit2Cloud 1Panel
CVE-2025-66508Same product: Fit2Cloud 1Panel
CVE-2025-56413Same product: Fit2Cloud 1Panel
CVE-2024-24768Same product: Fit2Cloud 1Panel
CVE-2023-36458Same product: Fit2Cloud 1Panel
CVE-2023-39966Same product: Fit2Cloud 1Panel
CVE-2024-34352Same product: Fit2Cloud 1Panel

Affected Assets

fit2cloud
1panel
1.4.3

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-863

Periodic review and update of procedures reduces incorrect authorization implementations over time.

addresses: CWE-863

Supervision identifies cases where authorization logic incorrectly permits unauthorized actions.

addresses: CWE-863

Defining permitted attribute values and auditing modifications reduces the chance of incorrect authorization outcomes due to tampered or missing labels.

addresses: CWE-863

The authorization process and usage restrictions help prevent incorrect authorization for remote access types.

addresses: CWE-863

Establishing configuration and connection requirements helps ensure correct rather than incorrect authorization for wireless access.

addresses: CWE-863

Establishing connection authorization processes for mobile devices helps ensure authorization decisions are correctly implemented rather than incorrect.

addresses: CWE-863

Monitoring account use, notifying on changes, and reviewing accounts for compliance corrects incorrect authorization assignments.

addresses: CWE-863

Ensures authorization decisions for external system use are correctly implemented and enforced.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

Requiring consistency between access rights and classification plus formal approval steps ensures that the authorization logic correctly distinguishes between entities that should and should not be granted access.

blocks

A.5.18's provisioning, revocation, review and adjustment of access rights (incl. before role changes/termination, with segregation and owner approval) directly stops incorrect authorization decisions from being exploitable in the vast majority of cases; the bounded remainder is incorrectness inside the authorization logic itself (e.g. flawed conditional or missing check) rather than rights that were wrongly granted.

blocks

A.8.3 directly mandates restricting access to information per policies via configuration, identity/group controls, isolation, and dynamic techniques that enforce correct authorization decisions, addressing most but not all slices of CWE-863 (e.g., remainder in non-access-decision authorization errors like timing or environmental factors).

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-863, a class-level weakness, and none of its children carries one either.

References