CVE-2026-75105
phpIPAM Temporary Subnet Share Information Disclosure via Address Parameter
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 17, 2026
- Updated
- Sep 24, 2026
- Reserved
- Aug 17, 2026
Description
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).
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
phpipamphpipam |
|
References
- GitHub Issue #4623issue-tracking
- https://github.com/phpipam/phpipamproduct
- Security: Various temp-share fixespatch
- phpIPAM v1.8.2 Release Notesrelease-notes
- VulnCheck Advisory: phpIPAM Temporary Subnet Share Information Disclosure via Address Parameterthird-party-advisory
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