The vulnerability CVE-2025-26896 in vpiwigo PiwigoPress (<= 2.33) is a Stored Cross-site Scripting (XSS) issue caused by improper input neutralization during web page generation. This allows attackers with at least limited privileges and user interaction to inject malicious scripts that persist and execute in the context of other users' browsers. The CVSS 3.1 base score is 6.5 with network attack vector, low attack complexity, requiring privileges and user interaction, and impacts confidentiality, integrity, and availability partially. No patch or official remediation information is currently available.

Successful exploitation of this vulnerability can lead to execution of arbitrary scripts in the context of affected users, potentially resulting in theft of sensitive information, session hijacking, or other malicious actions affecting confidentiality, integrity, and availability. The impact is rated medium based on the CVSS score of 6.5. There are no known active exploits reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should apply standard XSS mitigations such as input validation and output encoding where possible. Monitor vendor channels for updates and apply patches promptly once released.