CVE-2026-35503
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 · uneditedA vulnerability in SenseLive X3050’s web management interface allows authentication logic to be performed entirely on the client side, relying on hardcoded values within browser-executed scripts rather than server-side verification. An attacker with access to the login page could retrieve these exposed parameters and gain unauthorized access to administrative functionality.
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 confidenceThe SenseLive X3050 web management interface performs authentication verification entirely on the client side using JavaScript, with hardcoded credentials embedded in browser-executable scripts. An attacker accessing the login page can view the page source or intercept script contents to extract these exposed authentication parameters and bypass authentication entirely.
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= 1.523CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify device model and firmware versionAccess the device admin panel or check the device status page for the exact model number (SenseLive X3050) and firmware version. Compare against the affected version: Senselive X3500 Firmware version 1.523.Affected if Device is a SenseLive X3050 or X3500 running firmware version 1.523
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Confirm web management interface is exposedAttempt to access the web management interface via HTTP/HTTPS on the default management port (typically 80 or 443, or a custom port). Check if the login page loads.Affected if The web management interface is accessible over the network
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Inspect login page source for hardcoded credentialsRight-click on the login page and select 'View Page Source' or use browser developer tools (F12) to examine the HTML and JavaScript. Search for hardcoded username/password strings, authentication tokens, or credential-related variables embedded in script tags.Affected if Hardcoded credentials, authentication parameters, or credential-related variables are visible in the page source or scripts
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Verify authentication happens client-sideUse a proxy tool (e.g., Burp Suite, OWASP ZAP) or browser developer tools to capture the login request. Observe whether the authentication logic appears to execute in JavaScript within the browser rather than being validated server-side after form submission.Affected if Authentication validation logic is performed entirely in JavaScript on the client side with no server verification
If the device runs SenseLive X3050/X3500 firmware 1.523 and the login page source or scripts contain hardcoded credentials with client-side-only authentication verification, the environment is affected by this CVE.
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 dataReplace client-side authentication with proper server-side verification, remove all hardcoded credentials from the codebase, and issue a firmware update. If immediate patching is unavailable, restrict network access to the management interface via firewall rules or VPN.
- Consultation8.0 h
- Implementation24.0 h
- Testing12.0 h
- Review / QA6.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-35503 — 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-2026-35503 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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- Version or environment caveats, and links to real fixes
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