CVE-2025-7828 in WP Filter & Combine RSS Feeds Plugin
Summary
by MITRE • 08/23/2025
The WP Filter & Combine RSS Feeds plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the post_listing_page() function in all versions up to, and including, 0.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete feeds.
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Analysis
by VulDB Data Team • 08/23/2025
The vulnerability identified as CVE-2025-7828 affects the WP Filter & Combine RSS Feeds plugin for WordPress, representing a critical authorization flaw that undermines the security posture of affected systems. This issue stems from a missing capability check within the post_listing_page() function, which is present in all plugin versions up to and including version 0.4. The flaw specifically targets the privilege escalation and data modification capabilities of authenticated users within the WordPress ecosystem.
The technical implementation of this vulnerability allows attackers who possess Contributor-level access or higher to exploit the absence of proper capability verification when executing the post_listing_page() function. This function, which handles the display and management of RSS feed listings, fails to validate whether the requesting user has adequate permissions to perform destructive operations such as feed deletion. The missing capability check creates an unauthorized modification path that directly violates fundamental security principles of least privilege and access control enforcement.
From an operational impact perspective, this vulnerability enables authenticated attackers to manipulate RSS feed data within WordPress installations, potentially causing service disruption, information loss, or data corruption. Contributors and users with higher roles can exploit this weakness to delete feeds, which may result in broken feed integrations, loss of content aggregation functionality, or even complete disruption of feed-based content delivery systems that depend on the affected plugin. The attack vector is particularly concerning because it requires only Contributor-level privileges, making it accessible to users who typically should not possess destructive capabilities within the content management system.
The vulnerability aligns with CWE-285, which addresses insufficient authorization checks, and represents a clear violation of the principle that operations requiring modification capabilities should be restricted to users with appropriate administrative privileges. From an ATT&CK framework perspective, this weakness maps to privilege escalation and defense evasion techniques, as attackers can leverage the missing capability check to gain unauthorized access to data modification functions without triggering typical security monitoring systems.
Mitigation strategies should prioritize immediate plugin updates to versions that include proper capability checks and authorization validation. System administrators should implement role-based access controls to limit Contributor-level privileges where possible, and conduct comprehensive security audits of all installed WordPress plugins to identify similar authorization gaps. Additionally, monitoring for unauthorized feed deletion activities and implementing automated patch management processes will help reduce the attack surface and prevent exploitation of this vulnerability across affected environments.