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CVE-2025-54593

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Date: August 1, 2025

FreshRSS is a free, self-hostable RSS aggregator. In versions 1.26.1 and below, an authenticated administrator user can execute arbitrary code on the FreshRSS server by modifying the update URL to one they control, and gain code execution after running an update. After successfully executing code, user data including hashed passwords can be exfiltrated, the instance can be defaced when file permissions allow. Malicious code can be inserted into the instance to steal plaintext passwords, among others. This is fixed in version 1.26.2.

Severity Score

Related Resources (6)

https://github.com/FreshRSS/FreshRSS/commit/dbdadbb4107878d9233f635c31a88afe45957101
https://github.com/FreshRSS/FreshRSS/pull/7477
https://github.com/FreshRSS/FreshRSS/releases/tag/1.26.2
https://nvd.nist.gov/vuln/detail/CVE-2025-54593
https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-jcww-48g9-wf57
https://www.mend.io/vulnerability-database/CVE-2025-54593

Severity Score

Weakness Type (CWE)

Improper Control of Generation of Code ('Code Injection')

CWE-94

Top Fix

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Upgrade Version

Upgrade to version https://github.com/FreshRSS/FreshRSS.git - 1.26.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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