CVE-2025-66141 is a vulnerability identified in the merkulove Scroller plugin, a tool commonly used for creating scrollable content on websites, particularly WordPress-based sites. The core issue is a missing authorization control, meaning that the plugin does not properly verify whether a user has the necessary permissions before allowing certain actions. This incorrect access control can be exploited by attackers who have some level of authenticated access (PR:L) but do not require user interaction (UI:N) to execute unauthorized operations. The vulnerability affects all versions up to and including 2.0.2. The CVSS 3.1 base score is 5.4, indicating a medium severity level, with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), partial privileges required (PR:L), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), low integrity impact (I:L), and low availability impact (A:L). This means an attacker with limited privileges can cause some integrity and availability issues remotely without needing to trick users. Although no public exploits are known yet, the vulnerability could allow attackers to manipulate or disrupt content display or functionality, potentially leading to website defacement, denial of service, or other integrity-related impacts. The lack of patches at the time of reporting means organizations must rely on compensating controls until updates are released.

For European organizations, the missing authorization vulnerability in merkulove Scroller could lead to unauthorized modification or disruption of website content, affecting the integrity and availability of web services. This can damage organizational reputation, disrupt customer interactions, and potentially lead to data loss or downtime. Since the vulnerability requires some level of authenticated access, insider threats or compromised user accounts could be leveraged to exploit this flaw. Organizations relying on merkulove Scroller for marketing, e-commerce, or customer engagement platforms may face operational interruptions. The impact is particularly significant for sectors with high web presence such as retail, media, and public services. Additionally, availability impacts could affect service continuity, leading to financial and compliance repercussions under regulations like GDPR if service disruptions affect personal data processing.

1. Monitor merkulove’s official channels closely for security patches addressing CVE-2025-66141 and apply updates immediately upon release. 2. Until patches are available, restrict access to the Scroller plugin’s administrative and configuration interfaces to only trusted, essential personnel using role-based access controls. 3. Implement multi-factor authentication (MFA) for all user accounts with privileges to reduce the risk of account compromise. 4. Conduct regular audits of user permissions and remove unnecessary privileges to minimize the attack surface. 5. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the Scroller plugin endpoints. 6. Monitor logs for unusual activity related to the plugin, such as unauthorized attempts to modify scrollable content or configuration. 7. Educate web administrators and developers about the risks of improper access controls and encourage secure coding and configuration practices. 8. Consider isolating or disabling the Scroller plugin temporarily if it is not critical to operations until a patch is available.