---
id: CVE-2026-75105
title: >-
  phpIPAM through 1.8.1 fails to verify that a requested IP address belongs to
  the subnet a temporary share token was issued for
summary: >-
  phpIPAM through 1.8.1 fails to verify that a requested IP address belongs to
  the subnet a temporary share token was issued for. In app/temp_share/index.php
  and app/temp_share/address.php, when the share type is 'subnets', the subnetId
  pa…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
vendor: phpipam
product: phpipam
affected:
  - phpipam < 1.8.2
published: '2026-08-17'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:02:50.260'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75105'
references:
  - url: 'https://github.com/phpipam/phpipam'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/phpipam/phpipam/commit/2980be03652c0eb1db9fe2bcefaa210c854b9aea
    label: disclosure@vulncheck.com
  - url: 'https://github.com/phpipam/phpipam/issues/4623'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/phpipam/phpipam/releases/tag/v1.8.2'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/phpipam-temporary-subnet-share-information-disclosure-via-address-parameter
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00482
epssPercentile: 0.38869
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-08-20T13:48:29.426806Z'
ingestedAt: '2026-09-24T15:45:56.704Z'
---

## Overview

phpIPAM through 1.8.1 fails to verify that a requested IP address belongs to the subnet a temporary share token was issued for. In app/temp_share/index.php and app/temp_share/address.php, when the share type is 'subnets', the subnetId parameter is used directly as a database primary key to fetch an address without confirming the address belongs to the authorized subnet. An unauthenticated party holding any valid, non-expired temporary share URL can enumerate the subnetId parameter to read every IP address record across all sections and subnets, including hostnames, DNS names, MAC addresses, owner/contact fields, and notes (which may contain credentials and configuration details).

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.