A newly disclosed vulnerability in Apache Roller, the open-source blog server, allows attackers to bypass access controls. Tracked as CVE-2025-24859, the flaw affects all versions of Apache Roller from 1.0.0 to 6.1.4. The vulnerability occurs when a user changes their password, as the application fails to invalidate existing session tokens. Consequently, attackers can still access the account using old session cookies, even after the password is changed.
The issue allows malicious actors, who may have obtained session tokens via phishing or malware, to retain access to compromised accounts. This undermines the effectiveness of password resets, leaving accounts exposed despite the user’s efforts to regain control. The Apache Software Foundation considers the vulnerability “important,” citing potential for ongoing unauthorized access and exposure to compromised accounts. Affected users are advised to upgrade to version 6.1.5, which fixes the issue by ensuring all active sessions are invalidated after a password change.
The vulnerability’s impact is significant because Apache Roller is used as a blogging platform, making sites vulnerable to content tampering, data theft, or reputational harm. To mitigate risks, administrators should prioritize updating to version 6.1.5, which includes centralized session management. For those unable to immediately upgrade, the Apache Roller team recommends monitoring user sessions and advising users to log out and log back in after password changes.
The flaw was responsibly reported by researcher Haining Meng, prompting a timely patch and public disclosure. The development team’s swift response underscores the importance of robust session management in web applications that involve user-generated content. This vulnerability highlights the need for continuous vigilance to prevent unauthorized access to sensitive user accounts.
