AionApplication · Hcltech

CVE-2025-52660

CRITICAL · 9.8 CVSS v3.1 Published 2026-01-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
HCL AION is affected by an Unrestricted File Upload vulnerability. This can allow malicious file uploads, potentially resulting in unauthorized code execution or system compromise.

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 confidence

HCL AION contains an unrestricted file upload vulnerability allowing attackers to upload malicious files without proper validation. This can lead to remote code execution if uploaded files (such as web shells or executables) are subsequently accessed and executed by the server.

MitigationImplement strict file type validation (allowlist approach), verify file MIME types and extensions, store uploads outside web root with randomized filenames, disable script execution in upload directories, and apply proper access controls.

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
AionApplication
Affected:= 2.0.0

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed HCL AION version
    Query the product version through its administrative interface, version endpoint, or installed packages listing. Common methods include checking the application banner, About page, or using product-specific CLI tools if available.
    Affected if The installed version is exactly 2.0.0 (matches = 2.0.0 range)
  2. Locate file upload functionality
    Identify all endpoints or interfaces that accept file uploads. This may include profile picture uploads, document attachments, or file import features. Review application routing and API definitions.
    Affected if File upload functionality exists and is accessible to users or unauthenticated attackers
  3. Inspect upload storage location
    Examine application configuration or runtime behavior to determine where uploaded files are stored. Check if the storage path is within the web server's document root or otherwise web-accessible.
    Affected if Uploaded files are stored in a directory that is accessible via HTTP/HTTPS (web root or subdirectories)
  4. Verify script execution controls
    Review web server configuration (e.g., web.xml, server config) and upload directory settings to determine if script execution is disabled. Check for restrictions on executable file types (php, jsp, asp, exe, etc.).
    Affected if Script execution is NOT disabled in the upload directory, allowing uploaded files to be executed

You are affected if running HCL AION version 2.0.0 AND the file upload feature is exposed with uploads stored in a web-accessible location without script execution disabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict file type validation (allowlist approach), verify file MIME types and extensions, store uploads outside web root with randomized filenames, disable script execution in upload directories, and apply proper access controls.

Fix this in Aion Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-52660 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-52660 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

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.

What belongs here
  • 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