CVE-2025-54593Public exploitNetwork attack vector

Administrator RCE via writable update server URL

Published Aug 1, 2025 · Updated Aug 1, 2025

Code injection in FreshRSS 1.26.1 and earlier allows remote authenticated users to execute PHP code through the web updater. The system configuration accepts an administrator-controlled auto_update_url, then the updater writes the response body to data/update.php and executes it as PHP. Exploitation requires administrator access, enabled web updates, and writable source files; Docker, git deployments, and instances with updates disabled are unaffected.

CVSS severity7.2
High
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in FreshRSS 1.26.1 and earlier allows remote authenticated users to execute PHP code through the web updater. The system configuration accepts an administrator-controlled auto_update_url, then the updater writes the response body to data/update.php and executes it as PHP. Exploitation requires administrator access, enabled web updates, and writable source files; Docker, git deployments, and instances with updates disabled are unaffected.

The record

CVE
CVE-2025-54593
Published
Aug 1, 2025
Updated
Aug 1, 2025
Vendor
FreshRSS
Product
FreshRSS
Classifications
CWE-94, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=< 1.26.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

FreshRSS · FreshRSSversion=< 1.26.2

Published CVSS scores

7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

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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