CVE-2025-59586 describes a DOM-based Cross-site Scripting vulnerability in the Penci Portfolio plugin by PenciDesign. The issue arises from improper neutralization of input during web page generation, enabling an attacker to inject malicious scripts that execute in the context of the victim's browser. The vulnerability affects all versions up to 3.5. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, requiring privileges and user interaction, with impacts on confidentiality, integrity, and availability. No patch or vendor advisory information is currently available.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to partial compromise of user data confidentiality, integrity, and availability. The attack requires the attacker to have low privileges and for the victim to interact with malicious content. There are no known active exploits in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution with untrusted input and consider applying any available temporary mitigations recommended by the vendor once published.