AUGUST 23, 2026
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Case File

CVE-2026-53902

MEDIUM · CVSS 6.5 EPSS 0.21%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-07-01 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-53902
Severity
MEDIUM
CVSS
6.5
EPSS
0.21%

Original NVD Description

MCO does not properly enforce authorization checks in the /customer/servlet/mco/webapi/profile-sections/group-membership endpoint. An authenticated user can modify their group membership without proper authorization checks, allowing privilege escalation. An attacker can add themselves to arbitrary groups by supplying a valid group ID, which can be obtained via other application functionalities (e.g. /customer/servlet/mco/webapi/group/picker/groups), provided he has necessary permissions, or potentially inferred through brute-force techniques. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

Related CVEs

Other vulnerabilities affecting the same vendor(s)