CVE-2025-27296 in Auto Ad Inserter Plugin
Summary
by MITRE • 02/24/2025
Missing Authorization vulnerability in revenueflex Auto Ad Inserter – Increase Google Adsense and Ad Manager Revenue allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Auto Ad Inserter – Increase Google Adsense and Ad Manager Revenue: from n/a through 1.5.
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Analysis
by VulDB Data Team • 02/24/2025
The CVE-2025-27296 vulnerability represents a critical missing authorization flaw within the revenueflex Auto Ad Inserter plugin, specifically targeting the Google Adsense and Ad Manager revenue enhancement functionality. This vulnerability stems from improperly configured access control mechanisms that fail to enforce proper authorization checks before allowing administrative actions. The flaw exists across all plugin versions from the initial release through version 1.5, indicating a long-standing security oversight that has persisted for multiple iterations. The vulnerability manifests when the plugin fails to validate user permissions before executing revenue-related operations, creating a pathway for unauthorized actors to manipulate ad insertion configurations and potentially access sensitive revenue data.
The technical implementation of this vulnerability involves a failure in the plugin's access control validation layer, where administrative functions remain accessible to users who should not possess such privileges. This misconfiguration allows attackers to exploit the system by crafting requests that bypass normal authorization checks, effectively enabling privilege escalation through incorrect access control security levels. The vulnerability operates at the application level and specifically impacts the plugin's ability to properly authenticate and authorize users before granting access to revenue management features. From a cybersecurity perspective, this represents a classic authorization bypass vulnerability that aligns with CWE-285, which addresses improper authorization within software systems.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it potentially enables attackers to manipulate ad insertion settings and revenue generation parameters. This could result in financial loss through unauthorized ad placement modifications, revenue theft, or the ability to inject malicious advertisements into the target website. The vulnerability's scope is particularly concerning given that it affects the core revenue generation functionality of the plugin, meaning that any malicious actor who can access the administrative interface could potentially compromise the entire revenue stream. Attackers could leverage this vulnerability to modify ad settings, redirect traffic, or even gain deeper access to the WordPress installation through the compromised plugin.
Mitigation strategies for this vulnerability require immediate implementation of proper access control validation throughout the plugin's administrative interfaces. System administrators should upgrade to the latest available version of the Auto Ad Inserter plugin where the authorization flaw has been addressed, though the specific version containing the fix should be verified against the vendor's security advisories. Organizations should implement additional monitoring of administrative access logs to detect unauthorized access attempts and establish proper network segmentation to limit access to administrative functions. The vulnerability also highlights the importance of regular security audits of third-party plugins and adherence to the principle of least privilege, ensuring that only authorized personnel can access revenue-related configurations. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation techniques and can be exploited as part of a broader attack chain targeting web application security weaknesses.