CVE-2025-49900 in Advanced Scrollbar Plugin
Summary
by MITRE • 11/06/2025
Incorrect Privilege Assignment vulnerability in bPlugins Advanced scrollbar advanced-scrollbar allows Privilege Escalation.This issue affects Advanced scrollbar: from n/a through <= 1.1.8.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 11/08/2025
The CVE-2025-49900 vulnerability represents a critical privilege assignment flaw within the bPlugins Advanced scrollbar plugin, specifically impacting versions ranging from the initial release through version 1.1.8. This vulnerability resides in the plugin's improper handling of user permissions and access controls, creating a pathway for unauthorized privilege escalation. The flaw stems from the plugin's failure to correctly validate and assign user roles, allowing malicious actors to exploit this weakness and elevate their privileges within the affected system. Such vulnerabilities are particularly dangerous in content management systems and web applications where plugin security directly impacts overall system integrity.
The technical implementation of this vulnerability manifests through inadequate input validation and privilege checking mechanisms within the plugin's core functionality. When users interact with the advanced scrollbar plugin, the system fails to properly verify whether the requesting user possesses the necessary permissions to perform specific administrative actions. This misconfiguration creates a scenario where lower-privileged users can manipulate the plugin's behavior to gain elevated access rights, effectively bypassing the intended access control measures. The vulnerability aligns with CWE-276, which specifically addresses incorrect privilege assignment, and represents a classic example of insufficient access control implementation.
The operational impact of this vulnerability extends beyond simple privilege escalation, potentially enabling attackers to execute a wide range of malicious activities within the compromised environment. An attacker who successfully exploits this vulnerability could gain administrative access to the WordPress site, allowing them to modify content, install malicious plugins, alter user permissions, or even exfiltrate sensitive data. The affected system becomes vulnerable to full compromise, as the attacker can leverage the elevated privileges to establish persistent access and conduct further reconnaissance or lateral movement within the network. This type of vulnerability directly correlates with ATT&CK technique T1078 which covers valid accounts and privilege escalation through legitimate system access.
Organizations utilizing the affected bPlugins Advanced scrollbar plugin must prioritize immediate remediation to prevent potential exploitation. The primary mitigation strategy involves upgrading to the latest version of the plugin where the privilege assignment flaw has been addressed. System administrators should also implement comprehensive monitoring of user activities and access patterns to detect anomalous behavior that might indicate exploitation attempts. Additionally, implementing principle of least privilege access controls and regular security audits of installed plugins can help prevent similar vulnerabilities from being exploited. The vulnerability underscores the importance of proper security testing and validation of plugin components, particularly those handling user permissions and access controls, as highlighted in industry best practices for secure web application development and maintenance.