The vulnerability identified as CVE-2025-62866 is a Cross-Site Request Forgery (CSRF) issue found in the Valerio Monti Auto Alt Text plugin, which is used to automatically generate alt text for images in WordPress environments. The affected versions include all releases up to and including 2.5.2. CSRF vulnerabilities allow attackers to craft malicious web requests that, when executed by an authenticated user, perform unauthorized actions on their behalf without their knowledge or consent. In this case, an attacker could exploit the vulnerability by tricking a logged-in administrator or user with sufficient privileges into visiting a malicious webpage, which then sends forged requests to the Auto Alt Text plugin. This could result in unauthorized changes to plugin settings or content, potentially undermining the integrity of website content or causing operational disruptions. The vulnerability does not require user interaction beyond visiting a crafted URL, and no authentication bypass is necessary since it leverages the victim's existing session. No CVSS score has been assigned yet, and no public exploits have been reported. The vulnerability was reserved in late October 2025 and published in December 2025, indicating recent discovery. The lack of patch links suggests that a fix may not yet be publicly available, emphasizing the need for immediate attention from administrators using this plugin.

For European organizations, the impact of this CSRF vulnerability can be significant, particularly for those relying heavily on WordPress-based content management systems where the Auto Alt Text plugin is installed. Unauthorized changes to alt text or plugin configurations could degrade website accessibility compliance, which is critical under EU regulations such as the Web Accessibility Directive. Additionally, attackers could manipulate content integrity, potentially damaging organizational reputation or causing misinformation. In worst-case scenarios, if the plugin interacts with other system components or triggers automated workflows, availability could be affected. The ease of exploitation via social engineering increases the risk, especially in environments where users have elevated privileges and may be targeted by phishing campaigns. Organizations in sectors with stringent compliance requirements, such as government, finance, and healthcare, could face regulatory and operational consequences if exploited.

To mitigate this vulnerability, organizations should first monitor for official patches or updates from the plugin vendor and apply them promptly once available. In the absence of a patch, administrators should implement manual CSRF protections by ensuring that all state-changing requests in the plugin require nonce verification or similar anti-CSRF tokens. Restricting plugin access to only trusted administrators and limiting the number of users with high privileges can reduce exposure. Web Application Firewalls (WAFs) can be configured to detect and block suspicious cross-site requests. Additionally, user awareness training to recognize phishing and social engineering attempts can help prevent exploitation. Regular security audits of WordPress plugins and configurations should be conducted to identify and remediate similar vulnerabilities proactively. Finally, consider temporarily disabling or replacing the plugin if the risk is deemed unacceptable until a secure version is released.