CVE-2026-28508

HIGH

8.6

Description

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.

CVE Details

CVSS v3.1 Score8.6

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/6/2026

Last Modified3/16/2026

Sourcenvd

Honeypot Sightings0

Affected Products

withknown:known

Weaknesses (CWE)

CWE-918

References

https://github.com/idno/idno/releases/tag/1.6.4(security-advisories@github.com)

https://github.com/idno/idno/security/advisories/GHSA-fcrh-fqxh-6fx6(security-advisories@github.com)

IOC Correlations

No correlations recorded

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