CVE-2025-33015
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 · uneditedIBM Concert 1.0.0 through 2.1.0 is vulnerable to malicious file upload by not validating the content of the file uploaded to the web interface.
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 confidenceIBM Concert versions 1.0.0 through 2.1.0 contains a file upload vulnerability where the web interface fails to validate the content of uploaded files. This allows attackers to upload malicious files (executables, scripts, or other dangerous content types) that could lead to remote code execution or other attacks.
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>= 1.0.0, < 2.2.0CVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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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Determine installed IBM Concert versionAccess the IBM Concert administration interface or check the product version through the command line or configuration files. Look for version information in the product dashboard, about page, or run 'ibm-concert version' if available.Affected if The installed version falls between 1.0.0 and 2.1.0 inclusive, or is below 2.2.0.
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Identify if web upload interface is enabledLocate and review the IBM Concert web interface configuration. Check for upload-related endpoints or modules in the server configuration files (typically in conf/ or config/ directories). Look for upload handling components in the web server settings.Affected if The file upload web interface is enabled and accessible (this is the attack surface for the vulnerability).
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Inspect uploaded files directorySearch for directories where uploaded files are stored. Common paths include /uploads, /data/uploads, or similar. Examine file permissions and contents of any uploaded files present in these directories.Affected if Any files with dangerous extensions (.exe, .sh, .php, .jsp, .bat, .cmd) or unexpected executable content are found in upload directories, indicating potential exploitation.
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Check web server logs for upload activityReview IBM Concert web server access and error logs for patterns indicating file upload requests. Look for POST requests to upload endpoints, especially those with unusual or suspicious file names.
Your environment is affected if IBM Concert version is between 1.0.0 and 2.1.0 (or less than 2.2.0) AND the web-based file upload feature is enabled and accessible.
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.
dbcve · scoped2.2.0
Implement strict file content validation (magic byte checking, file type verification) on all file upload endpoints. Only allow approved file types and reject files with unexpected or dangerous content signatures.
IBM Concert 2.2.0 or later
- Verify current IBM Concert version by checking the application interface or system documentation
- Review IBM Concert 2.2.0 release notes for any upgrade requirements or prerequisites
- Backup current IBM Concert configuration and data according to organizational backup procedures
- Download IBM Concert version 2.2.0 or later from IBM's official support portal
- Follow IBM's documented upgrade procedure for Concert, ensuring all prerequisites are met
- After upgrade, verify the installation was successful and the application is functional
- Test file upload functionality to confirm the content validation fix is working
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-33015 — 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-2025-33015 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data