CVE-2025-62166Public exploitNetwork attack vector

Unauthenticated feed and token disclosure via unvalidated token

Published Mar 9, 2026 · Updated Mar 9, 2026

Improper access control in FreshRSS before 1.28.0 allows remote attackers to read any user's feeds and master tokens over the network. FreshRSS_Auth::removeAccess() accepts any nonempty token parameter, changes context to the attacker-selected user, and leaves anonymous-capable actions reachable. Anonymous viewing must be enabled; the flaw exposes feed data, OPML credentials, and reusable master tokens but does not grant write access.

CVSS severity7.5
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in FreshRSS before 1.28.0 allows remote attackers to read any user's feeds and master tokens over the network. FreshRSS_Auth::removeAccess() accepts any nonempty token parameter, changes context to the attacker-selected user, and leaves anonymous-capable actions reachable. Anonymous viewing must be enabled; the flaw exposes feed data, OPML credentials, and reusable master tokens but does not grant write access.

The record

CVE
CVE-2025-62166
Published
Mar 9, 2026
Updated
Mar 9, 2026
Vendor
FreshRSS
Product
FreshRSS
Classifications
CWE-284, CWE-639, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.28.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FreshRSS · FreshRSSversion=< 1.28.0

Published CVSS scores

7.5GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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