High severity8.8NVD Advisory· Published Nov 15, 2021· Updated Jun 17, 2026
CVE-2021-42839
CVE-2021-42839
Description
Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2(expand)+ 1 more
- (no CPE)
- (no CPE)range: 7.1.20160701
Patches
Vulnerability mechanics
References
1- www.twcert.org.tw/tw/cp-132-5288-9d546-1.htmlnvdThird Party Advisory
News mentions
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