FreshRSS प्रमाणित व्यवस्थापक द्वारा RCE हमलों के प्रति संवेदनशील है

Successful exploitation of CVE-2025-54593 allows an attacker to gain complete control over the FreshRSS server. By modifying the update URL to a malicious server, an administrator can trigger the execution of arbitrary code during the update process. This could involve downloading and executing a malicious script, enabling the attacker to steal sensitive data, including hashed passwords, deface the website, or establish a persistent backdoor. The blast radius extends to any data stored within the FreshRSS instance, and potentially to other systems accessible from the compromised server.

Organizations and individuals who self-host FreshRSS instances, particularly those with administrator accounts that have access to modify system settings, are at risk. Shared hosting environments where multiple users share a single FreshRSS instance are also particularly vulnerable, as a compromised administrator account could impact all users on the server.

• linux / server: Monitor FreshRSS update logs (typically located in /var/log/freshrss/) for any unexpected or unauthorized update attempts. Use journalctl -u freshrss to filter for update-related events.

journalctl -u freshrss | grep -i update

• generic web: Monitor access logs for requests to the FreshRSS update endpoint with unusual or suspicious parameters in the URL.

grep -i 'update?' /var/log/apache2/access.log

• php: Check the FreshRSS configuration file (config.inc.php) for any unusual or unexpected settings related to the update process.

1. 2025-08-01Disclosure

   disclosure

1. आरक्षित2025-07-25
2. प्रकाशित2025-08-01
3. EPSS अद्यतन2026-03-23

The primary mitigation for CVE-2025-54593 is to immediately upgrade FreshRSS to version 1.26.2 or later. If upgrading is not immediately feasible, consider restricting administrator access to the FreshRSS instance and closely monitoring update logs for any suspicious activity. While not a complete solution, implementing a Web Application Firewall (WAF) with rules to block requests with suspicious update URLs could provide an additional layer of defense. After upgrading, verify the fix by attempting an update and confirming that the server does not execute any unauthorized code.