Auth bypass in Phpipam
CVE-2026-108720
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind/phpipam-tools-cross-section-address-disclosure (third-party-advisory)
- github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/to… (technical-description)
- github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/to… (technical-description)
- github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/to… (technical-description)
- github.com/phpipam/phpipam (product)
- www.vulncheck.com/advisories/phpipam-through-1.8.3-missing-authorization-in-cus… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-108720?
- CVE-2026-108720 is a medium-severity vulnerability in Phpipam, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-11.
- How severe is CVE-2026-108720?
- Medium severity. CVSS v3 base score is 4.3 out of 10.