🟠 《高危安全漏洞：CVE-2026-15389》

CVSS 评分: 高危（8.7）　　状态: Received　　发布时间: 2026-07-14

漏洞描述

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 lifecycle management: new logins generate additional USIDs without revoking the previous ones, allowing multiple active sessions to coexist and thereby expanding the attack surface.

🔍 技术细节

字段 值
CVE ID CVE-2026-15389
CVSS 评分 8.7 🟠
严重程度 高危
CVSS 向量 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE 分类 CWE-639
发布时间 2026-07-14
最后更新 2026-07-14
状态 Received
数据来源 cve-coordination@incibe.es

🔗 参考链接