Missing authorization in phpIPAM exposes restricted subnets
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
phpIPAM through 1.8.3 contains a missing authorization flaw (CWE-862) because its customer, location and NAT pages skip the subnet permission check. An authenticated user with low privileges can read IP addresses, CIDRs, hostnames and MAC addresses from sections they cannot access.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for phpIPAM.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108720
- 2026-10-11 Alias added: GHSA-rv8q-2v6x-vpgr
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: LOW → MEDIUM
References
Other 4
- https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/customers/customer/objects/ipaddresses.php#L69-L110
- https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/locations/single-location.php#L129-L195
- https://github.com/phpipam/phpipam/blob/e8010751d491e485acefa5787fb0e518eb948771/app/tools/nat/nat_details.php#L16-L45
- https://github.com/phpipam/phpipam
More phpipam vulnerabilities
- TI-2024-09932 Cookie without Secure attribute in phpipam/phpipam CVSS 3.1HIGH 7.5
- TI-2023-22036 Phpipam before v1.5.2 was discovered to contain a LDAP injection vulnerability via the… CVSS 3.1HIGH 7.5
- TI-2023-01145 SQL Injection in phpipam/phpipam CVSS 3.1HIGH 7.2
- TI-2024-00724 Improper Restriction of Excessive Authentication Attempts in phpipam/phpipam CVSS 3.1MEDIUM 5.9
- TI-2024-27603 phpipam 1.6 is vulnerable to Cross Site Scripting (XSS) via /app/admin/powerDNS/record-edit.php. CVSS 3.1HIGH 7.1
- TI-2024-27600 phpipam 1.6 is vulnerable to Cross Site Scripting (XSS) via /app/admin/widgets/edit.php CVSS 3.1HIGH 7.1
Sources
- CVE-2026-108720 · CVE Program
- CVE-2026-108720 · NVD
- FIRST EPSS
- GHSA-rv8q-2v6x-vpgr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences