Core FirmwareOperating system · Taphome

CVE-2023-2759

HIGH · 8.8 CVSS v3.1 Published 2023-07-17
Fix available
A fix is available. Upgrade to 2023.2 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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 hidden API exists in TapHome's core platform before version 2023.2 that allows an authenticated, low privileged user to change passwords of other users without any prior knowledge. The attacker may gain full access to the device by using this vulnerability.

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

A hidden API endpoint in TapHome's core platform before version 2023.2 allows any authenticated user, regardless of privilege level, to change passwords of other users without requiring the current password or proper authorization. This broken access control vulnerability enables privilege escalation, allowing a low-privileged attacker to reset admin credentials and gain full device access.

MitigationUpgrade TapHome core platform to version 2023.2 or later, which removes or properly secures the hidden API endpoint. Additionally, audit all API endpoints for proper authorization checks.

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
Core FirmwareOperating system
Affected:< 2023.2

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/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 TapHome Core Firmware version
    Access the TapHome admin interface or check system information page to find the installed firmware version. This is typically found in Settings > System > About or similar location depending on interface layout.
    Affected if The installed version is earlier than 2023.2 (for example, 2023.1, 2022.x, or earlier)
  2. Locate the hidden password change API endpoint
    Review API documentation or intercept network traffic during password change operations. Common endpoint patterns include /api/user/password, /api/admin/reset-password, or similar paths under the /api/ directory. Check for undocumented endpoints not shown in official API docs.
    Affected if A password change endpoint exists that accepts user ID or username parameters without requiring the current password
  3. Verify authorization requirements on password change endpoints
    Use a low-privileged test account to attempt changing the password of a different user (such as another standard user or an administrator). Capture and analyze the HTTP request and response to see if the endpoint validates the caller's privileges.
    Affected if The endpoint accepts and processes password change requests for other users without validating that the caller has administrative privileges
  4. Test for privilege escalation via password reset
    With a standard (non-admin) account, attempt to change the password of an administrator account through the API. Check if the system allows this without requiring admin-level permissions or the current password.
    Affected if A low-privileged user can successfully change an administrator password, confirming the broken access control vulnerability
  5. Review user privilege configuration
    Examine the user management panel or user database to confirm privilege levels assigned to different user accounts. Verify that the system properly distinguishes between admin and standard user roles.
    Affected if Multiple privilege levels exist but the password change API does not enforce role-based access control

A defender is affected if their TapHome Core Firmware version is earlier than 2023.2 AND the system contains a password change API endpoint accessible to any authenticated user without proper authorization checks.

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.

dbcve · scoped
Upgrade available Upgrade to 2023.2 or later
Fixed in 2023.2
Interim mitigation

Upgrade TapHome core platform to version 2023.2 or later, which removes or properly secures the hidden API endpoint. Additionally, audit all API endpoints for proper authorization checks.

Recommended fix High confidence

2023.2

  1. Identify the TapHome device running the Core Firmware
  2. Check the current firmware version to confirm it is below 2023.2
  3. Obtain the firmware version 2023.2 or later from the official TapHome source
  4. Apply the firmware upgrade following TapHome's official upgrade procedure
  5. Verify the upgrade was successful and the version is now 2023.2 or later

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Core Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-2759 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2023-2759 in production — separate from our analysis above.

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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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