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SimplehelpApplication · Simple Help

CVE-2025-36727

HIGH · 8.8 CVSS v3.1 Published 2025-07-25
Fix available
A fix is available. Upgrade to 5.5.12 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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
Inclusion of Functionality from Untrusted Control Sphere vulnerability in Simplehelp.This issue affects Simplehelp: before 5.5.12.

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

Simplehelp before version 5.5.12 contains an Inclusion of Functionality from Untrusted Control Sphere vulnerability, allowing an attacker to include or execute functionality from an untrusted source or control domain. This could permit remote code execution or unauthorized command execution within the context of the Simplehelp service.

MitigationUpgrade Simplehelp to version 5.5.12 or later to obtain the patch for this vulnerability.

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
SimplehelpApplication
Affected:< 5.5.12

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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. Verify Simplehelp is installed
    Check for Simplehelp installation by examining common installation directories or using system tools. On Windows, check 'C:\Program Files\SimpleHelp' or 'C:\Program Files (x86)\SimpleHelp'. On Linux, check '/opt/simplehelp' or '/usr/local/simplehelp'. Use system package managers or installed programs list to confirm presence.
    Affected if Simplehelp software is found on the system
  2. Locate the Simplehelp version file or executable
    Navigate to the Simplehelp installation directory and look for version information. Common locations include a version.txt file, the main executable properties, or the start.sh/start.bat scripts. The main server executable is often named 'simplehelp' or 'SimpleHelpServer'.
    Affected if Version file or executable is found in the installation directory
  3. Determine the installed version number
    Open the version file or right-click the executable to view Properties > Details for the Version field. If using command line, run the server with a version flag if available, or inspect the version.txt file in the installation directory.
    Affected if A version number is obtained from the installation
  4. Compare version against the affected range
    Compare the installed version to 5.5.12 using standard version comparison. Versions below 5.5.12 (such as 5.5.11, 5.5.10, 5.0.0, etc.) are affected. Versions 5.5.12 and above are not affected.
    Affected if Installed version is less than 5.5.12

If Simplehelp is installed and the version is below 5.5.12, the environment is vulnerable to this Inclusion of Functionality from Untrusted Control Sphere vulnerability.

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 5.5.12 or later
Fixed in 5.5.12
Interim mitigation

Upgrade Simplehelp to version 5.5.12 or later to obtain the patch for this vulnerability.

Recommended fix Moderate confidence

Simplehelp 5.5.12

  1. Download Simplehelp version 5.5.12 or later from the official vendor source
  2. Back up your current Simplehelp configuration and data
  3. Stop the Simplehelp service
  4. Install the updated Simplehelp 5.5.12 version
  5. Restart the Simplehelp service
  6. Verify the service is running and the web interface is accessible

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

Fix this in Simplehelp Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA2.0 h
8.0 hours of engineering $1,390
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.

Scan for this in your stack

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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-2025-36727 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