CVE-2021-42838: Vice Webopac

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Grand Vice info Co. webopac7 book search field parameter does not properly restrict the input of special characters, thus unauthenticated attackers can inject JavaScript syntax remotely, and further perform reflective XSS attacks.

Affected products

• Vice Webopac: version 1.8.20160701 only; version 7.1.20160701 only

Published 2021-11-15. Last modified 2026-06-17.