Link Status CheckerApplication · Rems

CVE-2025-10410

CRITICAL · 9.8 CVSS v3.1 Published 2025-09-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A security vulnerability has been detected in SourceCodester Link Status Checker 1.0. This vulnerability affects unknown code of the file index.php. The manipulation of the argument proxy leads to server-side request forgery. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Server-side request forgery (SSRF) in SourceCodester Link Status Checker 1.0 allows remote attackers to make the server perform arbitrary HTTP requests via the unsanitized 'proxy' parameter in index.php, potentially accessing internal services or bypassing network restrictions.

MitigationImplement strict input validation with whitelist-based filtering on the proxy parameter to restrict allowed destinations, and apply network segmentation to limit server outbound connectivity to necessary endpoints only.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Link Status CheckerApplication
Affected:= 1.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Link Status Checker installation
    Locate the application directory (commonly in web root like /var/www/html/ or similar). Check for index.php and look for version indicators in source files, README, or meta tags.
    Affected if The installed version is Link Status Checker version 1.0 (or if version cannot be determined but the application is present)
  2. Locate the vulnerable index.php file
    Find index.php in the application root. Verify it contains code handling a 'proxy' parameter (search for $_GET['proxy'] or $_POST['proxy']).
    Affected if index.php exists and contains parameter handling for 'proxy' without proper validation
  3. Verify the application is network-accessible
    Check if the web server hosting Link Status Checker is exposed to network requests (check firewall rules, web server configuration, and listening interfaces).
    Affected if The application is reachable from network (not localhost-only or firewalled off)
  4. Inspect proxy parameter handling in source code
    Open index.php and examine the code flow where the 'proxy' parameter is used. Look for cURL requests or similar HTTP client calls that use the parameter value directly.
    Affected if The proxy parameter is used in HTTP requests without whitelist validation or sanitization
  5. Check for outbound network restrictions
    Review firewall rules or network segmentation policies controlling outbound connections from the web server. Verify if the server can initiate arbitrary outbound HTTP connections.
    Affected if The server has unrestricted outbound network access (no egress filtering)

You are affected if Link Status Checker version 1.0 is installed, the application is network-accessible, and the proxy parameter in index.php processes user input without validation.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict input validation with whitelist-based filtering on the proxy parameter to restrict allowed destinations, and apply network segmentation to limit server outbound connectivity to necessary endpoints only.

Fix this in Link Status Checker Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,330
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-10410 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data