VULNERABILITY INTELLIGENCE

CVE-2021-22849

CVSS score4.6 MEDIUM
EPSS probability0.52%
CISA KEVNot currently listed
Published2021-01-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

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.

Weakness classification

  • twcert@cert.org.tw: CWE-79
  • nvd@nist.gov: CWE-79

Primary references