External risk intelligence

ClipBucket 5.5.2 Default Admin Credentials Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2025-67418

ClipBucket is a web-based video sharing application designed to be public-facing. The vulnerability exists in the administrative panel, which, while meant for administrators, is a standard component of web applications that are frequently exposed to the internet to facilitate remote management and content administration.

Oxygenz Clipbucket

5.3 to 5.5.2

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory concerns a critical vulnerability identified in ClipBucket, a web-based video sharing platform, stemming from the use of hardcoded, default administrative credentials. Exploiting this flaw allows unauthenticated remote attackers to gain full administrative control over the application, posing a significant risk to system integrity and data.

Default passwords grant attackers full control.
Critical flaw lets anyone take over administrative access.
Confirm if this video platform is used.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by directly accessing the administrative panel of a vulnerable ClipBucket installation without needing any prior authentication. The vulnerability stems from the use of default, hardcoded administrative credentials that remain unchanged in many deployments. Once logged in with these credentials, the attacker gains full control over the application, allowing them to manipulate content and settings.

Requires unauthenticated network access.
Exploited via default administrative credentials.
Leads to full administrative control.

Live Threat

Current exploitation, exposure, and threat context

An unauthenticated remote attacker could gain full administrative control of a ClipBucket application by leveraging hardcoded default administrative credentials. This could expose system data and alter service behavior.

Application administrative control.
Unauthenticated remote access via default credentials.
Unauthorized application modification and data access.

Operational Fix

Recommended remediation, mitigation, and detection steps

The application owner is responsible for addressing this critical vulnerability in ClipBucket, as it allows unauthenticated remote attackers to gain full administrative control via hardcoded default credentials. The first practical step involves identifying all ClipBucket deployments, confirming their external reachability and business criticality, and then establishing the accountable owner for remediation planning.

Application owners must address the issue.
Verify external exposure and business criticality.
Plan remediation and coordinate with vendors.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is ClipBucket?

ClipBucket is an open-source, web-based video sharing and management platform. It provides tools for users to upload, publish, and manage video content, functioning similarly to private video hosting sites. It is commonly deployed by organizations looking to host their own media libraries or streaming services using PHP and MySQL.

What does CVE-2025-67418 mean for my security?

This vulnerability is classified as CWE-798, which refers to the use of hardcoded credentials. In this specific case, the software ships with preset administrative passwords. Because these credentials are built into the application, an attacker who knows them can bypass authentication entirely to gain full control over the platform’s settings and data.

How can an attacker trigger this vulnerability?

An attacker triggers this by navigating to the ClipBucket administrative panel and entering the hardcoded default credentials. Access does not require any prior user accounts, special permissions, or complex hacking techniques. Simply attempting to log in with these well-known defaults is sufficient to gain unauthorized entry.

Is my ClipBucket installation at risk?

According to Halo Surface Signal, ClipBucket is designed to be public-facing, which increases the likelihood that your administrative panel is accessible over the internet. If your instance is reachable from the public web, it is highly exposed to unauthorized takeover attempts. Internal-only instances remain vulnerable if an attacker gains access to your network.

What is the first step to address this CVE?

Begin by auditing your environment to locate all active ClipBucket installations. Once identified, immediately verify if the administrative credentials have been changed from the factory defaults. If you find any instance using default login information, prioritize updating those credentials or restricting access to the administrative panel until a permanent security update is applied.

References

medium.com/@arpit03sharma2003/cve-2025-67418-when-default-creden…

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.