VULNERABILITY INTELLIGENCE

CVE-2021-42331

CVSS score5.4 MEDIUM
EPSS probability0.64%
CISA KEVNot currently listed
Published2021-10-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Description

The “Study Edit” function of ShinHer StudyOnline System does not perform permission control. After logging in with user’s privilege, remote attackers can access and edit other users’ tutorial schedule by crafting URL parameters.

Weakness classification

  • twcert@cert.org.tw: CWE-285
  • nvd@nist.gov: CWE-862

Primary references