CVE-2025-13519 is a medium-severity Cross-Site Request Forgery vulnerability identified in the smjrifle SVG Map Plugin for WordPress, affecting all versions up to and including 1.0.0. The vulnerability stems from missing or improper nonce validation on several AJAX endpoints such as 'save_data', 'delete_data', and 'add_popup'. Nonces in WordPress are security tokens used to verify that requests originate from legitimate users and prevent CSRF attacks. Without proper nonce checks, attackers can craft malicious web requests that, when executed by an authenticated administrator, perform unauthorized actions on the plugin. These actions include altering plugin settings, deleting map data, and injecting malicious scripts, potentially leading to persistent cross-site scripting (XSS) or data loss. The attack vector requires no prior authentication but does require the victim administrator to interact with a malicious link or webpage. The vulnerability impacts the confidentiality and integrity of the affected WordPress sites but does not affect availability. The CVSS 3.1 score of 6.1 reflects the ease of exploitation (network vector, low attack complexity, no privileges required) balanced against the need for user interaction and limited impact on availability. No patches or official fixes are currently listed, and no exploits have been observed in the wild. The vulnerability was publicly disclosed in early 2026, with Wordfence as the assigner. Given the widespread use of WordPress and the popularity of plugins for interactive maps, this vulnerability presents a tangible risk to websites relying on this plugin for geographic data visualization or navigation.

For European organizations, this vulnerability could lead to unauthorized changes in website content and settings, potentially undermining trust and damaging brand reputation. Attackers could delete critical map data or inject malicious scripts that execute in the context of the administrator's browser, possibly leading to session hijacking or further compromise of the site. This is particularly concerning for organizations that rely on geographic data for customer interaction, logistics, or public information dissemination. The integrity of the website content is at risk, and attackers could leverage this to conduct phishing or spread malware. Although availability is not directly impacted, the loss or corruption of map data could disrupt business operations or user experience. Since exploitation requires an administrator to be tricked into clicking a malicious link, organizations with less security awareness or insufficient user training are more vulnerable. The threat is more pronounced for sectors such as government, transportation, tourism, and media within Europe, where interactive maps are commonly used. Additionally, regulatory compliance risks may arise if injected scripts lead to data breaches involving personal data under GDPR.

To mitigate this vulnerability, organizations should immediately audit their WordPress installations to identify the use of the smjrifle SVG Map Plugin and verify the plugin version. Since no official patch is currently available, administrators should consider temporarily disabling or removing the plugin until a secure update is released. Implementing strict nonce validation on all AJAX actions is critical; developers or site maintainers should add or correct nonce checks to ensure requests originate from legitimate users. Restricting AJAX endpoints to authenticated users with appropriate capabilities can reduce exposure. Administrators should be trained to recognize phishing attempts and avoid clicking suspicious links, especially when logged into administrative accounts. Employing web application firewalls (WAFs) with rules to detect and block CSRF attempts targeting these AJAX actions can provide an additional layer of defense. Regular backups of website data, including map data, should be maintained to enable recovery in case of data deletion or corruption. Monitoring logs for unusual AJAX requests or changes in plugin settings can help detect exploitation attempts early. Finally, organizations should stay informed about updates from the plugin vendor or WordPress security advisories to apply patches promptly once available.