CVE-2026-28508

Idno is a social publishing platform. Prior to version 1.6.4, a logic error in the API authentication flow causes the CSRF protection on the URL unfurl service endpoint to be trivially bypassed by any unauthenticated remote attacker. Combined with the absence of a login requirement on the endpoint itself, this allows an attacker to force the server to make arbitrary outbound HTTP requests to any host, including internal network addresses and cloud instance metadata services, and retrieve the response content. This issue has been patched in version 1.6.4.

CVSS v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/idno/idno/releases/tag/1.6.4	Product Release Notes
https://github.com/idno/idno/security/advisories/GHSA-fcrh-fqxh-6fx6	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:withknown:known:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-06 05:16

Updated : 2026-03-16 14:03

NVD link : CVE-2026-28508

Mitre link : CVE-2026-28508

CVE.ORG link : CVE-2026-28508

JSON object : View

Products Affected

withknown

known

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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