CVE-2025-45753Public exploitNetwork attack vector

Admin code execution via unvalidated module ZIP

Published May 21, 2025 · Updated May 22, 2025

Code injection in Vtiger CRM Open Source Edition 8.3.0 allows remote authenticated users with admin privileges to execute arbitrary PHP. The Module Import handler accepts an extension ZIP containing PHP without rejecting the executable file, then installs it as a module. Administrator access to the network interface is required; opening the imported module runs attacker-supplied PHP in the server context.

CVSS severity7.2
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Vtiger CRM Open Source Edition 8.3.0 allows remote authenticated users with admin privileges to execute arbitrary PHP. The Module Import handler accepts an extension ZIP containing PHP without rejecting the executable file, then installs it as a module. Administrator access to the network interface is required; opening the imported module runs attacker-supplied PHP in the server context.

The record

CVE
CVE-2025-45753
Published
May 21, 2025
Updated
May 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 21, 2025CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2CISA ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1505.003Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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