How to fix CVE-2025-54875?

Within 24 hours: Identify all affected systems running versions 1.16.0 and above and apply vendor patches immediately. Vendor patch is available.

Is Freshrss affected by CVE-2025-54875?

Organizations using versions 1.16.0 and above face critical risk from CVE-2025-54875, a improper access control vulnerability rated CVSS 9.8. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems.

CVE-2025-54875

CRITICAL

2025-09-29 [email protected]

9.8

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:14 vuln.today

Patch Released

Mar 28, 2026 - 19:14 nvd

Patch available

PoC Detected

Oct 03, 2025 - 15:59 vuln.today

Public exploit code

CVE Published

Sep 29, 2025 - 22:15 nvd

CRITICAL 9.8

Description

FreshRSS is a free, self-hostable RSS aggregator. In versions 1.16.0 and above through 1.26.3, an unprivileged attacker can create a new admin user when registration is enabled through the use of a hidden field used only in the user management admin page, new_user_is_admin. This is fixed in version 1.27.0.

Analysis

FreshRSS is a free, self-hostable RSS aggregator. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical Context

This vulnerability is classified under CWE-284. FreshRSS is a free, self-hostable RSS aggregator. In versions 1.16.0 and above through 1.26.3, an unprivileged attacker can create a new admin user when registration is enabled through the use of a hidden field used only in the user management admin page, new_user_is_admin. This is fixed in version 1.27.0. Affected products include: Freshrss. Version information: through 1.26.3.

Affected Products

Freshrss.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +49

POC: +20

CVE-2025-54875 vulnerability details – vuln.today

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CVE-2025-54875

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CVE-2025-54875

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

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External POC / Exploit Code