CVE-2025-8526
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 was found in Exrick xboot up to 3.3.4. It has been declared as critical. This vulnerability affects the function Upload of the file xboot-fast/src/main/java/cn/exrick/xboot/modules/base/controller/common/UploadController.java. The manipulation of the argument File leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
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 confidenceExrick xboot up to version 3.3.4 contains an unrestricted file upload vulnerability in the UploadController.java file. The Upload function does not properly validate the File argument, allowing remote attackers to upload arbitrary files (including malicious executables) to the server, potentially leading to remote code execution.
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<= 3.3.4CVSS 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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Confirm Exrick Xboot is deployedIdentify if the Exrick Xboot application is installed in your environment by checking for the application codebase, web archives, or running services that match Xboot characteristics.Affected if Xboot is present in the environment
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Determine installed Xboot versionLocate and inspect the application version information - typically found in pom.xml, build.gradle, a version.properties file, or the application startup logs. Compare the version number to the affected range: versions 3.3.4 and below.Affected if Installed version is 3.3.4 or lower
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Identify the UploadController endpointLocate the UploadController.java file in the application's source code or decompiled bytecode. Determine the HTTP endpoint path (typically /upload or similar) that handles file uploads.Affected if UploadController.java exists and the upload endpoint is accessible
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Check if upload endpoint requires authenticationReview the UploadController.java code or application security configuration to determine whether authentication is enforced before file upload operations are permitted.Affected if Upload endpoint is accessible without authentication or authorization checks
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Inspect upload directory configurationExamine the application configuration to identify where uploaded files are stored and whether the upload directory is accessible via web (within webroot). Check if script execution is disabled in that directory.Affected if Upload directory is within webroot and script execution is not disabled
Your environment is affected if Exrick Xboot version 3.3.4 or lower is deployed with the upload endpoint accessible and without proper authentication or upload directory restrictions.
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 file type validation (whitelist approach), validate file content/magic bytes, rename uploaded files, store uploads outside the webroot, and disable script execution in the upload directory. Additionally, enforce authentication and authorization checks on the upload endpoint.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-8526 — 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-2025-8526 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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