CVE-2025-58173Public exploitNetwork attack vector

Authenticated code execution via language path traversal

Published Dec 15, 2025 · Updated Dec 15, 2025

Path traversal in FreshRSS 1.23.0 through 1.27.0 allows remote authenticated users to execute code via the language setting. The translation lookup uses the stored language value in an include path without blocking traversal, so ../ makes an install.session.nok lookup include app/install.php. A low-privilege account and valid CSRF token are required; installer steps can then replace database settings, create an admin, or execute server code.

CVSS severity8.8
High
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in FreshRSS 1.23.0 through 1.27.0 allows remote authenticated users to execute code via the language setting. The translation lookup uses the stored language value in an include path without blocking traversal, so ../ makes an install.session.nok lookup include app/install.php. A low-privilege account and valid CSRF token are required; installer steps can then replace database settings, create an admin, or execute server code.

The record

CVE
CVE-2025-58173
Published
Dec 15, 2025
Updated
Dec 15, 2025
Vendor
FreshRSS
Product
FreshRSS
Classifications
CWE-20, CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 15, 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=>= 1.23.0, < 1.27.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FreshRSS · FreshRSSversion=>= 1.23.0, < 1.27.1

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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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