CVE-2025-54591Public exploitNetwork attack vectorHinoki check available

Unauthenticated feed and tag disclosure via missing checks

Published Sep 29, 2025 · Updated Sep 29, 2025

Improper access control in FreshRSS before 1.27.0 allows remote attackers to read the default administrator's feed and tag metadata. The tagController updateAction and javascriptController actualizeAction and nbUnreadsPerFeedAction omit both firstAction enforcement and manual FreshRSS_Auth::hasAccess() checks. Unauthenticated HTTP access is sufficient; disclosed data includes feed names and IDs, tag names and filters, and unread counts, but not tag modification.

CVSS severity7.5
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper access control in FreshRSS before 1.27.0 allows remote attackers to read the default administrator's feed and tag metadata. The tagController updateAction and javascriptController actualizeAction and nbUnreadsPerFeedAction omit both firstAction enforcement and manual FreshRSS_Auth::hasAccess() checks. Unauthenticated HTTP access is sufficient; disclosed data includes feed names and IDs, tag names and filters, and unread counts, but not tag modification.

The record

CVE
CVE-2025-54591
Published
Sep 29, 2025
Updated
Sep 29, 2025
Vendor
FreshRSS
Product
FreshRSS
Classifications
CWE-284, T1595.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2025Record 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=< 1.27.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FreshRSS · FreshRSSversion=< 1.27.0

Published CVSS scores

7.5GitHubCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1595.002Vulnerability Scanning

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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