CVE-2023-27259
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 authentication in the GetAssignmentsDue method in IDAttend’s IDWeb application 3.1.052 and earlier allows extraction of sensitive student and teacher data by unauthenticated attackers.
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 where the GetAssignmentsDue method in IDAttend's IDWeb application lacks authentication checks, allowing any unauthenticated user to directly access the endpoint and extract sensitive student and teacher personally identifiable information (PII).
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<= 3.1.052CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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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Confirm IDAttend IDWeb installationIdentify the IDWeb application in your environment. This is typically a web application running on your school's or district's network. Check your web server logs or application inventory for 'IDWeb' or 'Idattend' references.Affected if IDAttend IDWeb is present in the environment
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Check installed IDWeb versionLocate the version information for your IDWeb installation. This is usually found in the application itself (often in an About page, footer, or help menu), in the assembly metadata if it's a .NET application, or in your software asset management records.Affected if The installed version is 3.1.052 or any version lower than 3.1.052
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Test unauthenticated access to GetAssignmentsDue endpointAttempt to access the GetAssignmentsDue method endpoint directly via HTTP/HTTPS request without providing any authentication credentials. The endpoint URL pattern is typically something like /IDWeb/GetAssignmentsDue or /api/GetAssignmentsDue. Send a GET or POST request to this endpoint using a browser or HTTP client without logging in.Affected if The endpoint returns HTTP 200 OK and displays or returns data containing student or teacher personally identifiable information without requiring login
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Verify PII exposure in responseExamine the response from the GetAssignmentsDue endpoint (if accessible). Look for sensitive fields such as student names, teacher names, addresses, phone numbers, email addresses, student IDs, or other personal information in the returned data.Affected if The response contains unencrypted student or teacher PII data without any authentication required
You are affected if IDAttend IDWeb version 3.1.052 or lower is installed AND the GetAssignmentsDue endpoint is accessible without any authentication credentials, returning sensitive PII data.
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 dataApply the vendor patch or update IDWeb to a version newer than 3.1.052; alternatively, implement authentication and authorization controls on the GetAssignmentsDue method to verify user identity before returning data.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-27259 — 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-2023-27259 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
- No weaponised exploit code, or anything meant to cause harm
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