CVE-2024-29127 in Advanced Access Manager Plugin
Summary
by MITRE • 03/19/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in AAM Advanced Access Manager allows Reflected XSS.This issue affects Advanced Access Manager: from n/a through 6.9.20.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 04/14/2025
The vulnerability identified as CVE-2024-29127 represents a critical cross-site scripting flaw within the AAM Advanced Access Manager plugin, specifically manifesting as an improper neutralization of input during web page generation. This weakness creates an avenue for attackers to inject malicious scripts into web pages viewed by other users, fundamentally compromising the security posture of affected systems. The vulnerability operates through reflected XSS mechanisms where malicious input is immediately reflected back to users without adequate sanitization or encoding, making it particularly dangerous in web applications that process user-supplied data for display.
The technical flaw resides in the plugin's failure to properly sanitize and neutralize user input before incorporating it into dynamically generated web content. This improper handling of input data creates a pathway for attackers to craft malicious payloads that, when executed in a victim's browser, can perform unauthorized actions on their behalf. The vulnerability affects all versions of Advanced Access Manager from the initial release through version 6.9.20, indicating a sustained issue that has persisted across multiple iterations of the software. The reflected nature of this XSS vulnerability means that malicious scripts are typically delivered via crafted URLs or form submissions that are immediately reflected back to users, eliminating the need for persistent storage mechanisms.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to hijack user sessions, steal sensitive information, manipulate web content, or redirect users to malicious sites. The affected plugin's role in access management creates additional security implications, as successful exploitation could potentially allow attackers to gain unauthorized access to protected resources or bypass authentication mechanisms. This vulnerability directly aligns with CWE-79, which defines the improper neutralization of input during web page generation as a primary cause of cross-site scripting vulnerabilities, and can be mapped to ATT&CK technique T1566.001 for the initial compromise through spearphishing with a link.
Organizations utilizing Advanced Access Manager versions 6.9.20 and earlier face significant risk exposure from this vulnerability, particularly in environments where users interact with the plugin's administrative interfaces or where user-generated content is processed. The remediation strategy must prioritize immediate patching to the latest available version of the plugin, as this represents the most effective defense against the reflected XSS attack vectors. Additional mitigations should include implementing robust input validation and output encoding mechanisms, deploying web application firewalls to detect and block malicious payloads, and establishing comprehensive monitoring for suspicious user activities. Security teams should also conduct thorough vulnerability assessments to identify any potential exploitation attempts and ensure that user access controls remain properly enforced to limit the impact of any successful attacks.