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Lost And Found Information SystemApplication · Oretnom23

CVE-2023-5018

CRITICAL · 9.8 CVSS v3.1 Published 2023-09-17
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
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 vulnerability classified as critical has been found in SourceCodester Lost and Found Information System 1.0. This affects an unknown part of the file /classes/Master.php?f=save_category of the component POST Parameter Handler. The manipulation of the argument id leads to sql injection. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-239859.

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 · high confidence

SQL injection vulnerability in SourceCodester Lost and Found Information System 1.0 allows remote attackers to inject arbitrary SQL commands via the 'id' parameter in the POST request to /classes/Master.php?f=save_category. The application fails to properly sanitize user input before using it in SQL queries.

MitigationReplace dynamic SQL queries with parameterized queries/prepared statements for all user-controlled inputs, particularly the 'id' parameter in save_category. Additionally, implement input validation and output encoding as defense-in-depth measures.

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
Lost And Found Information SystemApplication
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 if Lost and Found Information System is deployed
    Search the web server document root for files matching 'lost and found' or inspect the application banner/title via HTTP requests to the server
    Affected if The application is present on the server and identifies as SourceCodester Lost And Found Information System
  2. Confirm the application version is 1.0
    Inspect application files for a version identifier, typically in a README, version config, or footer file. Compare against the affected version = 1.0
    Affected if The installed version is exactly 1.0
  3. Verify the vulnerable endpoint exists
    Check for the existence of /classes/Master.php on the web server and confirm it accepts a 'save_category' function parameter
    Affected if The file /classes/Master.php?f=save_category is accessible and responds to POST requests
  4. Inspect the save_category function for unsanitized input handling
    Examine the PHP code in /classes/Master.php around the save_category function, specifically looking at how the 'id' parameter is handled in SQL queries without prepared statements
    Affected if The code directly incorporates the 'id' parameter into SQL queries without using parameterized queries or input sanitization
  5. Determine if the application is network-accessible
    Verify whether the web server hosting the application accepts remote connections from untrusted networks
    Affected if The application is exposed to the internet or untrusted internal networks without network segmentation

A system is affected if it runs SourceCodester Lost And Found Information System version 1.0 with the /classes/Master.php endpoint accessible and the save_category function containing unsanitized SQL input handling for the id parameter.

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

Replace dynamic SQL queries with parameterized queries/prepared statements for all user-controlled inputs, particularly the 'id' parameter in save_category. Additionally, implement input validation and output encoding as defense-in-depth measures.

Fix this in Lost And Found Information System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
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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-2023-5018 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
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