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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

4
  • Vice/Webopac2 versions
    cpe:2.3:a:vice:webopac:1.8.20160701:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:vice:webopac:1.8.20160701:*:*:*:*:*:*:*
    • cpe:2.3:a:vice:webopac:7.1.20160701:*:*:*:*:*:*:*
  • Grand Vice Info Co./Webopac7llm-fuzzy2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: 7.1.20160701

Patches

Vulnerability mechanics

References

1

News mentions

0

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