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Medium severity4.6NVD Advisory· Published Jan 22, 2021· Updated Jun 17, 2026

CVE-2021-22849

CVE-2021-22849

Description

Hyweb HyCMS-J1 backend editing function does not filter special characters. Users after log-in can inject JavaScript syntax to perform a stored XSS (Stored Cross-site scripting) attack.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Hyweb/HyCMS-J1llm-fuzzy3 versions
    (expand)+ 2 more
    • (no CPE)
    • cpe:2.3:a:hyweb:hycms-j1:*:*:*:*:*:*:*:*range: <=7.4.3
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

0

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