Vulnerability · Published Oct 11, 2026 · Assigned by VulnCheck

CVE-2026-108720phpIPAM through 1.8.3 Missing Authorization in Customers, Locations and NAT Pages

Medium 4.3

In plain English

A medium-severity missing authorization in phpipam from phpipam. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 29% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 71.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

phpIPAM through 1.8.3 contains a missing authorization vulnerability that allows authenticated low-privilege users to view restricted subnets and addresses because customer, location and NAT pages skip Subnets::check_permission. Attackers can open customer objects.php, single-location.php or nat_details.php to read IP addresses, CIDRs, hostnames and MAC addresses from sections they cannot access.

Affected products (as reported)

Vendor	Product	Versions
phpipam	phpipam	0 – through 1.8.3

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://hackmd.io/@haind/phpipam-tools-cross-section-address-disclosure third-party-advisory
https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/customers/customer/objects/ipaddresses.php#L69-L110 technical-description
https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/locations/single-location.php#L129-L195 technical-description
https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/nat/nat_details.php#L16-L45 technical-description
https://github.com/phpipam/phpipam product
VulnCheck Advisory: phpIPAM through 1.8.3 Missing Authorization in Customers, Locations and NAT Pages third-party-advisory