Vulnerability · Published Aug 17, 2026 · Assigned by VulnCheck

CVE-2026-75105phpIPAM Temporary Subnet Share Information Disclosure via Address Parameter

High 7.5

In plain English

A high-severity authorization bypass via user-controlled key in phpipam from phpipam. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.5%top 58.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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).

Affected products (as reported)

Vendor	Product	Versions
phpipam	phpipam	0 – before 1.8.2

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

GitHub Issue #4623 issue-tracking
https://github.com/phpipam/phpipam product
Security: Various temp-share fixes patch
phpIPAM v1.8.2 Release Notes release-notes
VulnCheck Advisory: phpIPAM Temporary Subnet Share Information Disclosure via Address Parameter third-party-advisory