CVE-2022-39035
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 · uneditedSmart eVision has insufficient filtering for special characters in the POST Data parameter in the specific function. An unauthenticated remote attacker can inject JavaScript to perform XSS (Stored Cross-Site Scripting) attack.
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 confidenceSmart eVision contains a stored Cross-Site Scripting (XSS) vulnerability where the POST Data parameter in a specific function lacks proper filtering of special characters. An unauthenticated remote attacker can inject malicious JavaScript that persists in the application and executes when other users view the affected content.
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= 2022.02.21CVSS 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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 installed Smart eVision versionAccess the application admin panel or check the product about/install information page. Look for the version number displayed in the system information or footer of the application interface.Affected if The installed version is exactly 2022.02.21
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Locate the vulnerable POST Data functionIdentify the application endpoint or function that processes POST Data parameters. This is typically found in forms or data submission pages within Smart eVision. Review application URL patterns and HTTP request handling for the parameter name 'POST Data' or similar.Affected if The function handling POST Data parameters exists and is accessible without authentication
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Test for unauthenticated access to data submissionSubmit a test HTTP POST request to the identified endpoint with a benign payload in the POST Data parameter. Observe whether the application accepts and stores the input without requiring login credentials.Affected if The endpoint accepts unauthenticated POST requests with the Data parameter
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Check for stored XSS payloads in application dataReview the application database or view application pages where user-submitted data is displayed. Look for any existing script tags, javascript: URIs, or event handler attributes in stored content that may indicate prior exploitation.Affected if Any stored malicious scripts or XSS payloads are present in the database or rendered in user-facing pages
The environment is affected if Smart eVision version 2022.02.21 is installed and the vulnerable POST Data parameter function is accessible, allowing unauthenticated attackers to store malicious JavaScript that executes when other users view the content.
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 strict input validation with allowlist filtering for special characters in the POST Data parameter and apply context-aware output encoding before rendering data in user-facing pages. Additionally, configure Content-Security-Policy headers to mitigate XSS execution.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2022-39035 — 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-2022-39035 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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