CVE-2025-67948 identifies a vulnerability in the SendPulse Email Marketing Newsletter plugin, specifically versions up to 2.2.1, where sensitive system information is exposed to unauthorized control spheres. This means that attackers without proper authentication can retrieve embedded sensitive data from the system, potentially including configuration details, environment variables, or other internal information that should remain confidential. The vulnerability arises from insufficient access controls or improper data sanitization within the plugin’s codebase. Although no known exploits are currently reported in the wild, the exposure of sensitive information can facilitate further attacks such as privilege escalation, targeted phishing, or system compromise. The plugin is widely used for managing email marketing campaigns, making it a valuable target for attackers seeking to gain insights into organizational infrastructure or customer data. The absence of a CVSS score indicates that the vulnerability is newly published and not yet fully assessed, but the technical details point to a significant confidentiality breach risk. The vulnerability affects all versions up to 2.2.1, with no patch links currently available, emphasizing the need for immediate attention from users of the plugin. The vulnerability was reserved and published in December 2025 by Patchstack, a known vulnerability aggregator, which adds credibility to the report.

For European organizations, the exposure of sensitive system information through this vulnerability can have serious consequences. Confidentiality breaches may lead to unauthorized disclosure of customer data, internal configurations, or security mechanisms, undermining trust and violating data protection laws such as GDPR. Attackers could use the leaked information to craft more effective social engineering attacks, gain unauthorized access to other systems, or disrupt marketing operations. The reputational damage and potential regulatory fines could be significant, especially for companies heavily reliant on email marketing platforms like SendPulse. Additionally, the vulnerability could be exploited to gather intelligence for more complex attacks targeting critical infrastructure or business processes. Organizations in sectors such as finance, healthcare, and e-commerce, which often use email marketing tools, are particularly at risk. The lack of authentication requirements and user interaction for exploitation increases the threat level, making it easier for attackers to leverage this vulnerability remotely.

To mitigate the risk posed by CVE-2025-67948, organizations should take the following specific actions: 1) Monitor SendPulse plugin updates closely and apply security patches immediately once released by the vendor. 2) Restrict access to the SendPulse Email Marketing Newsletter plugin’s administrative interfaces using network segmentation, IP whitelisting, or VPN access to limit exposure to trusted personnel only. 3) Conduct thorough audits of the plugin’s configuration and remove any unnecessary embedded sensitive data or debug information that could be exposed. 4) Implement robust logging and monitoring to detect unusual access patterns or data retrieval attempts related to the plugin. 5) Educate marketing and IT teams about the risks associated with plugin vulnerabilities and enforce strict change management policies. 6) Consider alternative email marketing solutions with stronger security postures if timely patching is not feasible. 7) Review and enhance overall web application firewall (WAF) rules to block suspicious requests targeting the plugin endpoints. These measures go beyond generic advice by focusing on access control, monitoring, and proactive vulnerability management tailored to this specific threat.