CVE-2026-2410 is a medium-severity CSRF vulnerability identified in the WordPress plugin 'Disable Admin Notices – Hide Dashboard Notifications' developed by themeisle. The vulnerability exists in all versions up to and including 1.4.2 due to the absence of nonce validation in the showPageContent() function, which is responsible for rendering plugin settings pages. Nonce tokens are security mechanisms used in WordPress to verify that requests originate from legitimate users and not from forged sources. Without nonce validation, attackers can craft malicious URLs or forms that, when visited or submitted by an authenticated administrator, cause unintended changes to the plugin’s configuration. Specifically, attackers can add arbitrary URLs to the blocked redirects list, potentially interfering with site navigation or administrative notice management. Exploitation requires social engineering to convince an administrator to click a malicious link or visit a crafted page, as no authentication is required for the attacker but user interaction is mandatory. The vulnerability impacts the integrity of plugin settings but does not expose sensitive data or cause denial of service. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N) indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or availability impact, and limited integrity impact. No public exploits or active exploitation have been reported to date. The vulnerability was published on February 25, 2026, and remains unpatched as no patch links are provided. This issue highlights the importance of implementing nonce validation in WordPress plugins to prevent CSRF attacks.

The primary impact of CVE-2026-2410 is the unauthorized modification of plugin settings by an attacker through CSRF, which compromises the integrity of the affected WordPress site’s administrative configuration. By adding arbitrary URLs to the blocked redirects list, attackers can disrupt normal administrative workflows, potentially causing confusion or hindering legitimate administrative notices. Although this does not directly expose sensitive data or cause service outages, it may facilitate further social engineering or administrative errors. For organizations relying on this plugin, especially those with multiple administrators or complex workflows, this vulnerability could lead to misconfigurations that degrade user experience or complicate site management. Since exploitation requires an administrator to interact with a malicious link, the risk is somewhat mitigated by user awareness but remains significant in environments with less vigilant users. The absence of known exploits reduces immediate risk but does not eliminate the potential for future attacks. Overall, the impact is medium severity, affecting integrity without compromising confidentiality or availability.

To mitigate CVE-2026-2410, organizations should immediately update the 'Disable Admin Notices – Hide Dashboard Notifications' plugin to a version that includes nonce validation once available. Until a patch is released, administrators should avoid clicking on suspicious links and be cautious when browsing untrusted websites. Implementing web application firewalls (WAFs) with rules to detect and block CSRF attempts targeting the plugin’s endpoints can provide additional protection. Site administrators should enforce the principle of least privilege by limiting administrative access to trusted personnel only. Enabling multi-factor authentication (MFA) for WordPress admin accounts can reduce the risk of account compromise that could facilitate exploitation. Regularly auditing plugin configurations and monitoring for unexpected changes to the blocked redirects list can help detect exploitation attempts early. Developers maintaining WordPress plugins should ensure nonce validation is implemented for all state-changing requests to prevent similar CSRF vulnerabilities. Finally, educating administrators about the risks of CSRF and safe browsing practices is essential to reduce the likelihood of successful social engineering attacks.