CVE-2025-47655 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability identified in theMarketer product by themarketer2023, affecting versions up to 1.4.7. This vulnerability allows an attacker to perform unauthorized actions on behalf of an authenticated user without their consent. Specifically, the CSRF flaw enables stored Cross-Site Scripting (XSS) attacks, where malicious scripts injected by the attacker are permanently stored on the target system and executed in the context of other users' browsers. The CVSS 3.1 base score of 7.1 reflects the vulnerability's network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is changed (S:C), indicating that exploitation can affect resources beyond the initially vulnerable component. The impact metrics show low confidentiality and integrity impacts (C:L, I:L) but a low availability impact (A:L), meaning the vulnerability can lead to unauthorized data manipulation and partial service disruption. The vulnerability arises from improper validation of requests, allowing attackers to craft malicious requests that, when executed by authenticated users, result in stored XSS payloads. These payloads can be used to hijack user sessions, steal sensitive data, or perform further attacks within the affected application environment. No patches are currently linked, and no known exploits are reported in the wild, indicating that while the vulnerability is serious, active exploitation has not yet been observed. The vulnerability is cataloged under CWE-352, highlighting the CSRF nature of the issue.

For European organizations using theMarketer product, this vulnerability poses significant risks. The stored XSS enabled by CSRF can lead to session hijacking, credential theft, and unauthorized actions within the application, potentially compromising sensitive marketing data, customer information, and internal communications. Given the network-level exploitability and lack of required privileges, attackers can target users remotely, increasing the threat surface. The partial availability impact could disrupt marketing operations or degrade service quality. Organizations subject to GDPR and other data protection regulations face compliance risks if personal data is exposed or manipulated. The vulnerability's ability to affect multiple users due to stored XSS increases the potential scale of impact, making it a critical concern for businesses relying on theMarketer platform for digital marketing campaigns and customer engagement across Europe.

Immediate mitigation steps include implementing anti-CSRF tokens in all state-changing requests within theMarketer application to validate the legitimacy of user actions. Organizations should enforce strict Content Security Policy (CSP) headers to limit the execution of unauthorized scripts and reduce the impact of stored XSS. Regularly auditing and sanitizing user inputs and stored content can prevent malicious script injection. Network-level protections such as Web Application Firewalls (WAFs) should be configured to detect and block CSRF and XSS attack patterns. User education on avoiding suspicious links and verifying request legitimacy can reduce successful exploitation. Until official patches are released, consider isolating theMarketer application within segmented network zones and restricting access to trusted users. Monitoring application logs for unusual activities related to CSRF or XSS attempts is essential for early detection. Finally, maintain up-to-date backups to enable recovery in case of compromise.