CVE-2025-40667
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 · uneditedMissing authorization vulnerability in TCMAN's GIM v11. This allows an authenticated attacker to access any functionality of the application even when they are not available through the user interface. To exploit the vulnerability the attacker must modify the HTTP code of the response from ‘302 Found’ to ‘200 OK’, as well as the hidden fields hdnReadOnly and hdnUserLogin.
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 confidenceThis is a broken access control vulnerability in TCMAN GIM v11 where server-side authorization checks are missing or improperly implemented. An authenticated attacker can manipulate the HTTP response (changing 302 redirect to 200 OK) and modify hidden form fields (hdnReadOnly, hdnUserLogin) to access functionality not exposed through the UI. This indicates the application relies on client-side controls or weak server-side validation for authorization decisions.
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= 11.0CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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 checksWork through these to decide whether this CVE applies to you.
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Identify TCMAN GIM v11 installationLocate the TCMAN GIM application installation directory and check the version information, typically found in the product's about page, version file, or installation manifestAffected if The installed version is exactly version 11.0
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Verify presence of hidden form fields in web interfaceInspect HTML forms in the TCMAN GIM web interface for hidden input fields named 'hdnReadOnly' and 'hdnUserLogin' that can be modified client-sideAffected if These hidden form fields exist and can be manipulated by an authenticated user
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Confirm HTTP response manipulation vulnerabilityTest HTTP responses by intercepting traffic and modifying redirect status codes (302) to success codes (200) to bypass UI-enforced navigation restrictionsAffected if The application allows navigation to restricted pages by simply changing the HTTP response code
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Check server-side authorization enforcementReview server-side code or configuration to verify whether authorization decisions are made based on server-validated session data rather than client-submitted form fields like hidden inputsAffected if Authorization logic relies on client-modifiable parameters or lacks server-side validation entirely
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Verify authenticated user access controlsTest whether an authenticated user can access functionality outside their assigned permissions by modifying hidden fields or intercepting HTTP responsesAffected if Users can elevate privileges or access unauthorized functionality through the described manipulation techniques
A user is affected if TCMAN GIM version 11.0 is installed and the application relies on client-side controls or hidden form fields for authorization decisions rather than enforcing proper server-side validation.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement proper server-side authorization checks for all functionality regardless of UI exposure. Remove any reliance on client-modifiable fields (like hidden form fields) for access control decisions and enforce authorization at the server level for every request.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-40667 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-40667 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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