CVE-2025-49910 is a missing authorization vulnerability identified in the WPGuppy WordPress plugin developed by AmentoTech Private Limited, affecting versions up to and including 1.1.4. The vulnerability arises because certain functionality within the plugin is not properly constrained by access control lists (ACLs), allowing unauthenticated remote attackers to invoke privileged functions without proper authorization checks. This flaw enables attackers to access sensitive data or perform actions that should be restricted, impacting the confidentiality of the affected systems. The CVSS v3.1 base score of 8.2 reflects the high severity, with an attack vector over the network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction needed (UI:N). The scope is unchanged (S:U), with a high impact on confidentiality (C:H), low impact on integrity (I:L), and no impact on availability (A:N). Although no public exploits have been reported yet, the vulnerability's characteristics make it a prime target for exploitation once weaponized. The plugin is commonly used in WordPress environments to enhance form-building capabilities, and its improper ACL implementation creates a critical security gap. The vulnerability was reserved in June 2025 and published in October 2025, indicating recent discovery and disclosure. No patches or fixes are currently linked, so users must rely on vendor updates or mitigation strategies. The lack of authentication and user interaction requirements significantly lowers the barrier for exploitation, increasing the urgency for affected parties to respond.

For European organizations, this vulnerability poses a significant risk, especially for those relying on WordPress sites with the WPGuppy plugin installed. The high confidentiality impact means sensitive user data, business information, or internal configurations could be exposed to unauthorized parties. This could lead to data breaches, regulatory non-compliance (e.g., GDPR violations), reputational damage, and potential financial penalties. The limited integrity impact suggests attackers might alter some data but not extensively compromise system operations or availability. Since the vulnerability requires no authentication or user interaction, attackers can exploit it remotely and anonymously, increasing the likelihood of automated scanning and exploitation attempts. Organizations in sectors such as finance, healthcare, e-commerce, and government are particularly vulnerable due to the sensitive nature of their data and the regulatory environment in Europe. Additionally, the absence of known exploits currently provides a window for proactive defense, but this may close rapidly once exploit code becomes publicly available. The vulnerability could also be leveraged as a foothold for further attacks within a compromised network.

1. Immediately identify all WordPress installations using the WPGuppy plugin and determine the version in use. 2. Monitor the vendor’s official channels for patches or updates addressing CVE-2025-49910 and apply them promptly once available. 3. If patches are not yet available, consider temporarily disabling or uninstalling the WPGuppy plugin to eliminate the attack surface. 4. Restrict access to WordPress administrative and plugin-related endpoints via IP whitelisting or VPN access to limit exposure. 5. Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting WPGuppy plugin endpoints. 6. Conduct thorough audits of logs for unusual access patterns or attempts to exploit this vulnerability. 7. Educate site administrators and developers about the risks of missing authorization vulnerabilities and the importance of least privilege principles. 8. Regularly back up WordPress sites and databases to enable recovery in case of compromise. 9. Employ security plugins that can detect unauthorized changes or access attempts within WordPress environments. 10. Consider engaging with cybersecurity professionals to perform penetration testing focused on plugin vulnerabilities.