CVE-2026-75105

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 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 Software

Weaknesses

• CWE-639: Authorization Bypass Through User-Controlled Key

References

• https://github.com/phpipam/phpipam/issues/4623
• https://github.com/phpipam/phpipam
• https://github.com/phpipam/phpipam/commit/2980be03652c0eb1db9fe2bcefaa210c854b9aea
• https://github.com/phpipam/phpipam/releases/tag/v1.8.2
• https://www.vulncheck.com/advisories/phpipam-temporary-subnet-share-information-disclosure-via-address-parameter

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