ZnunyApplication

CVE-2024-32491

CRITICAL · 9.8 CVSS v3.1 Published 2024-04-29
Fix available
A fix is available. Upgrade to after 7.0.16 or later.
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
An issue was discovered in Znuny and Znuny LTS 6.0.31 through 6.5.7 and Znuny 7.0.1 through 7.0.16 where a logged-in user can upload a file (via a manipulated AJAX Request) to an arbitrary writable location by traversing paths. Arbitrary code can be executed if this location is publicly available through the web server.

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 confidence

Authenticated path traversal vulnerability in Znuny/Znuny LTS allows logged-in users to upload files to arbitrary locations via manipulated AJAX requests with directory traversal sequences, potentially enabling remote code execution if the uploaded file is placed in a web-accessible directory.

MitigationUpgrade to Znuny LTS 6.5.8+, 7.0.17+, or apply vendor patch to implement proper path sanitization on file upload endpoints; temporarily restrict web server write permissions to non-web directories and monitor for suspicious AJAX requests.

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
ZnunyApplication
Affected:>= 6.0.31, <= 6.5.7>= 7.0.1, <= 7.0.16

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 Znuny version
    Locate the version file or admin interface that displays the Znuny LTS version number (typically found in system administration or about page)
    Affected if Version is >= 6.0.31 and <= 6.5.7, or >= 7.0.1 and <= 7.0.16
  2. Confirm user authentication is active
    Verify that the Znuny installation has active user accounts and that login functionality is enabled for regular users
    Affected if Authenticated user accounts exist and users can log in to the system
  3. Verify file upload capability exists
    Check if the AJAX file upload endpoint is accessible to logged-in users - look for upload-related modules or attachments functionality in the web interface available to regular users
    Affected if File upload functionality is enabled and accessible to authenticated (non-admin) users
  4. Inspect web server logs for traversal patterns
    Review web server access logs for AJAX requests containing directory traversal sequences (such as ../ or ..\) in upload-related endpoints
    Affected if Logs show AJAX upload requests with directory traversal patterns from any user IP
  5. Scan web directories for unexpected files
    Examine web-accessible directories (such as var/httpd/htdocs or similar web root folders) for newly created files that were not uploaded through known legitimate processes
    Affected if Unexpected files appear in web-accessible directories, especially executable or script files

User is affected if their Znuny LTS version falls within 6.0.31-6.5.7 or 7.0.17-7.0.16 AND authenticated users have access to the file upload feature.

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
Upgrade available Upgrade to a release after 7.0.16
Interim mitigation

Upgrade to Znuny LTS 6.5.8+, 7.0.17+, or apply vendor patch to implement proper path sanitization on file upload endpoints; temporarily restrict web server write permissions to non-web directories and monitor for suspicious AJAX requests.

Fix this in Znuny Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,770
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,832.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-32491 — 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-2024-32491 in production — separate from our analysis above.

No notes yet

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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