CVE-2020-10506
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 · uneditedThe School Manage System before 2020, developed by ALLE INFORMATION CO., LTD., contains a vulnerability of Path Traversal, allowing attackers to access arbitrary files.
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 path traversal vulnerability in the School Manage System (before 2020) that allows attackers to manipulate file path inputs using directory traversal sequences (such as '../') to access files outside the intended web root directory, potentially exposing sensitive system files or configuration data.
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 dataall versionsCVSS 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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Identify if School Manage System is deployedCheck for the presence of the School Manage System application in your web server's document root or application directory. Look for directories or files related to a school management application.Affected if The School Manage System application is found on the server
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Determine the installed versionReview application files such as version.php, README.txt, or any version metadata file within the application directory. Compare the version against the affected range (all versions before 2020).Affected if The installed version is any version of School Manage System prior to 2020, or if no version information is found but the application appears to be this system
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Locate file path input functionalityIdentify application endpoints or functions that accept file path parameters, such as file download, file view, image display, or file include features. Search for parameters that might accept filenames or paths.Affected if The application contains functionality that accepts user-supplied file path inputs without evidence of path traversal protection
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Inspect input validation on file path parametersReview the source code or configuration for the identified file path input handlers. Check if the application sanitizes or validates path inputs using realpath(), allow-lists, or input validation before processing.Affected if No visible input validation, canonicalization with realpath(), or allow-listing is implemented for file path parameters
If School Manage System is deployed and contains file path input functionality without proper traversal protection, the environment is likely affected by this vulnerability.
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 on all file path parameters, use canonicalization with realpath() to resolve absolute paths, and restrict file access to allow-listed directories. Additionally, apply principle of least privilege to file system permissions.
- 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-2020-10506 — 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-2020-10506 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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