CVE-2025-64256 is a Cross-Site Request Forgery (CSRF) vulnerability identified in PressTigers Simple Folio, a web-based portfolio management tool, affecting all versions up to and including 1.1.0. CSRF vulnerabilities occur when an attacker tricks an authenticated user into submitting a forged HTTP request, causing the user’s browser to perform unwanted actions on a web application where they are logged in. This vulnerability does not require the attacker to have prior authentication or elevated privileges, but it does require the victim to interact with a maliciously crafted link or webpage (user interaction). The CVSS v3.1 score of 8.8 reflects the high impact on confidentiality, integrity, and availability, as an attacker could manipulate or corrupt data, change settings, or disrupt services. The vulnerability is remotely exploitable over the network without complex attack conditions, increasing its risk profile. No patches or exploit code are currently publicly available, but the vulnerability is officially published and should be considered a critical risk for affected users. The lack of embedded CSRF protections such as anti-CSRF tokens or origin validation in Simple Folio facilitates this attack. Given the nature of the product, which is often used by organizations to manage digital portfolios or content, successful exploitation could lead to unauthorized content changes, data leakage, or denial of service.

For European organizations, the impact of CVE-2025-64256 can be significant, especially for those relying on Simple Folio for managing digital content or portfolios. Confidentiality may be compromised if attackers manipulate or exfiltrate sensitive information through forged requests. Integrity is at high risk as attackers could alter portfolio content, inject malicious data, or change user settings without authorization. Availability could also be affected if attackers execute actions that disrupt normal operations or cause service outages. This can lead to reputational damage, loss of customer trust, and potential regulatory penalties under GDPR if personal data is involved. The remote exploitability and lack of required authentication increase the threat surface, making it easier for attackers to target European organizations. Additionally, sectors such as media, education, and creative industries that use Simple Folio extensively could face operational disruptions. The absence of known exploits in the wild currently reduces immediate risk but does not diminish the urgency for mitigation, as attackers often develop exploits rapidly after public disclosure.

To mitigate CVE-2025-64256, organizations should first verify if they are using PressTigers Simple Folio versions up to 1.1.0 and plan immediate upgrades once patches are released by the vendor. In the absence of official patches, implement web application firewall (WAF) rules to detect and block suspicious CSRF attack patterns. Enforce strict validation of the HTTP Referer and Origin headers to ensure requests originate from trusted sources. Incorporate anti-CSRF tokens in all state-changing requests to verify legitimacy. Educate users about the risks of clicking on unsolicited links or visiting untrusted websites while authenticated. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts that could facilitate CSRF attacks. Regularly audit and monitor web application logs for unusual activity indicative of CSRF attempts. Finally, consider isolating Simple Folio instances behind VPNs or internal networks where feasible to reduce exposure to external threats.