CVE-2025-13361 identifies a Cross-Site Request Forgery (CSRF) vulnerability in the Web to SugarCRM Lead plugin for WordPress, developed by dipesh_patel. This vulnerability exists in all versions up to and including 1.0.0 due to the absence of nonce validation on the custom field deletion functionality. Nonce validation is a security mechanism used in WordPress to ensure that requests are intentional and originate from legitimate users. Without this protection, attackers can craft malicious web requests that, when executed by an authenticated administrator (via clicking a link or visiting a crafted webpage), cause the deletion of custom fields in the SugarCRM lead data managed through the plugin. The vulnerability does not require the attacker to be authenticated, but it does require user interaction from an administrator, making social engineering a key component of exploitation. The impact is limited to integrity, as unauthorized deletion of custom fields can disrupt CRM data management and workflows but does not expose sensitive data or cause denial of service. The CVSS 3.1 base score is 4.3 (medium), reflecting network attack vector, low complexity, no privileges required, but user interaction necessary. No patches or exploits are currently documented, but the vulnerability is publicly disclosed and should be addressed promptly to prevent potential abuse.

For European organizations, this vulnerability poses a risk primarily to the integrity of CRM data managed via the Web to SugarCRM Lead plugin on WordPress sites. Unauthorized deletion of custom fields can lead to loss of critical business data, disruption of lead management processes, and potential operational inefficiencies. While confidentiality and availability are not directly impacted, the integrity compromise can affect decision-making and customer relationship workflows. Organizations in sectors heavily reliant on CRM data accuracy—such as finance, retail, and professional services—may experience operational setbacks. Additionally, if attackers combine this vulnerability with social engineering campaigns targeting administrators, the risk of successful exploitation increases. European entities with public-facing WordPress sites integrating SugarCRM leads are particularly vulnerable, especially if administrative access controls and user awareness are weak. The absence of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits following public disclosure.

To mitigate CVE-2025-13361, organizations should: 1) Update the Web to SugarCRM Lead plugin to a version that includes nonce validation once available; if no patch exists, consider disabling the plugin or the custom field deletion feature temporarily. 2) Implement strict administrative access controls, limiting the number of users with deletion privileges and enforcing strong authentication mechanisms such as multi-factor authentication (MFA). 3) Educate administrators about phishing and social engineering risks to reduce the likelihood of clicking malicious links. 4) Employ web application firewalls (WAFs) with rules to detect and block suspicious CSRF attempts targeting the plugin’s endpoints. 5) Monitor logs for unusual deletion activities or requests originating from unexpected sources. 6) Consider deploying Content Security Policy (CSP) headers to reduce the risk of malicious cross-site requests. 7) Regularly audit WordPress plugins and their configurations to ensure security best practices are followed.