CVE-2026-62111 is a CWE-79 cross-site scripting vulnerability in Simple Payment software by Ido Kobelkowsky. It affects versions up to and including 2.5.4. The vulnerability arises from improper neutralization of input during web page generation, allowing an attacker with low privileges and requiring user interaction to execute scripts that can impact confidentiality, integrity, and availability. The CVSS 3.1 vector indicates network attack vector, low attack complexity, privileges required, user interaction required, and scope changed, with partial impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can lead to the execution of arbitrary scripts in the context of the victim's browser, potentially resulting in partial loss of confidentiality, integrity, and availability of the affected system or user data. The attack requires user interaction and some privileges, limiting the ease of exploitation. 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 available, users should exercise caution with untrusted input and consider applying web application firewalls or input validation controls if feasible. Monitor vendor channels for updates regarding patches or official mitigations.