What’s Vulnerable › Vulnerabilities

CVE-2025-34293: GN4 Publishing System Insecure Direct Object Reference (IDOR) Information Disclosure

• Severity: high (CVSS 8.6 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-24 · updated 2026-10-08
• Weakness: CWE-639

Description

GN4 Publishing System versions prior to 2.6 contain an insecure direct object reference (IDOR) vulnerability via the API. Authenticated requests to the API's object endpoints allow an authenticated user to request arbitrary user IDs and receive sensitive account data for those users, including the stored password and the account's security question and answer. The exposed recovery data and encrypted password may be used to reset or take over the target account.

Affected products

• Naviga Global / Miles 33 GN4 Publishing System: before 2.6 — fixed in 2.6

How to fix

Upgrade to a fixed version: Naviga Global / Miles 33 GN4 Publishing System 2.6. Check the vendor advisory for mitigations.

References

• https://nne.navigacloud.com/GN4Help/gn4_introduction_to_gn4.htm
• https://www.miles33.com/news/news/5955/naviga--miles-33--acquisition.html
• https://www.miles33.com/section/14/gn4
• https://www.vulncheck.com/advisories/gn4-publishing-system-idor-information-disclosure

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