Grand Vice info Co. webopac7 - Reflected XSS

published 2021-11-15 4y ago modified 2026-06-17 4mo ago also EUVD-2021-29793

cvss: 6.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

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.

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Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

Grand Vice info Co. webopac7

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

twcert.org.tw /tw/cp-132-5286-b92c8-1.html
third-party-advisory

Sources

CVE List CVE-2021-42838
NVD CVE-2021-42838

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