The vulnerability CVE-2025-23959 in Good Old Gallery is a reflected cross-site scripting issue caused by improper input neutralization during web page generation. This allows attackers to inject malicious scripts that execute when a user interacts with crafted web content. The affected versions include all releases up to 2.1.2. The CVSS v3.1 base score is 7.1, indicating a high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. No patch or vendor advisory is currently provided, and the software is not a cloud service.

Successful exploitation of this vulnerability can allow an attacker to execute arbitrary scripts in the context of the victim's browser, potentially leading to information disclosure, modification of data, or disruption of service. The CVSS score reflects partial impacts on confidentiality, integrity, and availability. There are no known active exploits in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider applying input validation or output encoding workarounds if feasible. Monitor official sources for updates and apply patches promptly once available.