CVE-2021-42838: Grand Vice info Co. webopac7 - Reflected XSS

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-15 · updated 2026-06-17
Weakness: CWE-79

Description

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

Grand Vice info Webopac: 1.8.20160701, 7.1.20160701

References

https://www.twcert.org.tw/tw/cp-132-5286-b92c8-1.html
https://www.twcert.org.tw/tw/cp-132-5286-b92c8-1.html

Get alerted when CVE-2021-42838 or the next vulnerability affects your stack