MEDIUMCVSS v4 6.9Vulnerability

CVE-2026-66091

In openEQUELLA before 2026.1, the GET /api/userquery/userinfobackup endpoint performs no authentication or authorisation check. An unauthenticated attacker who supplies another user's uniqueId can retrieve that user's stored personal details (username, first name, last name and email address) within the same institution.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-29T03:46:53.555909+00:00
Cvss severity
MEDIUM
Cvss score
6.9
Retrieved at
2026-10-29T03:47:35+00:00
Score
6.9
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-66091
Cvss vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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
First seen by Signal
2026-10-29T03:47:35+00:00
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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
Published at
2026-10-29T02:16:52.933
Last modified
2026-10-29T02:16:52.933

Related Entities (1)

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CVE-2026-66091 (CVSS v4 6.9) — Ninja Signal Threat Intelligence | Ninja Signal