점검 대응높음KEV 미등록
CVE-2026-15389
Sesame Time Sesame Time 취약점
A vulnerability relating to insufficient access control has been identified in the session management of the Sesame Time web application and its REST v3 API. The flaw lies in the fact that the system uses the session identifier (USID) as the sole validation mechanism, without verifying whether that identifier legitimately belongs to the user making the request. As a result, an attacker who obtains a valid USID can impersonate a victim’s session and access their confidential information, including emails, user IDs, roles and corporate data. This vulnerability is exacerbated by poor session l...
- 대응 우선순위
- 점검
- CVSS
- 8.7
- EPSS
- 0.27% 백분위 19.8% · 2026.08.03 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.07.14