The Frontend Post Submission Manager Lite plugin for WordPress, developed by wpshuffle, suffers from a Missing Authorization vulnerability identified as CVE-2025-14080. This vulnerability exists in all versions up to and including 1.2.5. The root cause is the absence of proper authorization checks in the AJAX handler fpsml_form_process, which processes frontend post submissions. Specifically, the plugin fails to verify whether the user making the request has the appropriate permissions to update posts. As a result, an unauthenticated attacker can craft a request containing a post_id parameter to modify arbitrary posts on the WordPress site. The attacker can alter critical post attributes such as titles, content, excerpts, and even remove the original post authorship. This flaw violates the principle of least privilege and allows unauthorized content manipulation, undermining the integrity of the site’s published information. The vulnerability does not impact confidentiality or availability directly but poses a significant risk to content integrity. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) indicates network attack vector, low attack complexity, no privileges or user interaction required, and scope unchanged. No patches or fixes have been officially released at the time of this report, and no known exploits have been observed in the wild. However, the vulnerability is publicly disclosed and could be targeted by attackers seeking to deface or manipulate website content.

The primary impact of CVE-2025-14080 is unauthorized modification of WordPress posts, which can severely affect the integrity and trustworthiness of affected websites. Organizations relying on the Frontend Post Submission Manager Lite plugin may face content defacement, misinformation, or removal of author attribution, potentially damaging brand reputation and user trust. This could be exploited for disinformation campaigns, phishing setups, or to insert malicious content indirectly. While the vulnerability does not allow direct data theft or denial of service, the ability to alter published content without authentication can have significant operational and reputational consequences. Websites with high public visibility, news portals, blogs, or e-commerce platforms using this plugin are particularly at risk. Additionally, attackers could use this vulnerability as a foothold for further attacks by injecting malicious links or scripts into posts. The lack of authentication requirement and ease of exploitation increase the likelihood of exploitation attempts once the vulnerability is widely known.

To mitigate CVE-2025-14080, organizations should immediately audit their WordPress installations for the presence of the Frontend Post Submission Manager Lite plugin and its version. If the plugin is in use, disable or remove it until a patched version is released. In the absence of an official patch, administrators can implement custom authorization checks in the plugin’s fpsml_form_process AJAX handler to verify user permissions before processing post updates. This involves validating that the request originates from authenticated users with appropriate capabilities (e.g., 'edit_posts') and rejecting unauthorized requests. Additionally, web application firewalls (WAFs) can be configured to detect and block suspicious requests containing unexpected post_id parameters from unauthenticated sources. Monitoring logs for unusual post modifications or AJAX requests can help detect exploitation attempts. Regular backups of website content are essential to restore integrity if unauthorized changes occur. Finally, maintain vigilance for updates from the plugin vendor and apply patches promptly when available.