CVE-2025-45753
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 in Vtiger CRM Open Source Edition v8.3.0 allows an attacker with admin privileges to execute arbitrary PHP code by exploiting the ZIP import functionality in the Module Import feature.
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 confidenceVtiger CRM v8.3.0 contains a code execution vulnerability in its Module Import feature where the ZIP import functionality fails to properly sanitize or validate uploaded files, allowing an authenticated admin user to execute arbitrary PHP code.
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= 8.3.0CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/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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Verify Vtiger CRM versionLog in as admin, navigate to Settings > About or check the config.php file for the vtiger_version variable. Alternatively, check the vtiger_version in the database.Affected if The installed version equals exactly 8.3.0
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Confirm Module Import feature is enabledNavigate to Settings > Module Manager or Settings > Import to verify the Module Import functionality is accessible in the installation.Affected if The Module Import feature is present and enabled in the CRM settings
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Check admin user accessNavigate to Settings > Users or Settings > User Management to verify you have admin-level privileges.Affected if An authenticated administrator account exists and can access the Module Import interface
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Verify ZIP upload capability in Module ImportAttempt to access the Module Import wizard and confirm the ZIP file upload option is available as an import method.Affected if ZIP file upload is an available import option in the Module Import feature
You are affected if Vtiger CRM version is exactly 8.3.0 and an authenticated admin can access the Module Import feature with ZIP upload capability.
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 dataRestrict Module Import feature permissions to only trusted administrators, implement strict validation of ZIP file contents before extraction, and consider disabling the vector until an official patch is applied.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
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Free · runs locallyCheck whether your project pulls in CVE-2025-45753 — 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-2025-45753 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
- No spam, self-promotion, credentials, or personal data