Is this vulnerability remotely exploitable?

Yes. Any party with network access to the affected FreshRSS instance could potentially exploit this issue via the web interface, especially when anonymous viewing is enabled.

Does an attacker need to be authenticated?

Not necessarily. The vulnerability involves logic around anonymous viewing and master authentication tokens, so in some configurations an unauthenticated user may access feeds that should be private.

What is the safest general fix pattern?

Strengthen authorization checks on all feed-related endpoints so that each request verifies ownership or explicit sharing before returning data, and ensure master tokens are tightly scoped and bound to a single user or clearly defined permissions.

Severity:

HIGH RISK

(7.5)

Authorization Bypass on Feed Access (CWE-284) in FreshRSS Master Authentication Tokens

CVE-2025-62166

Published:

Mar 9, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

Authorization Bypass / Broken Access Control

CWE:

CWE-284;CWE-639

Impact:

Unauthorized Data Access

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Authorization Bypass / Broken Access Control

CWE:

CWE-284;CWE-639

Impact:

Unauthorized Data Access

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Authorization Bypass on Feed Access (CWE-284) in FreshRSS Master Authentication Tokens

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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