CVE-2026-5781Network attack vector

Administrator escalation via manipulated identifier field

Published Apr 28, 2026 · Updated Apr 28, 2026

Improper authorization in MphRx Minerva 3.6.0 allows remote authenticated users to obtain administrator privileges via an HTTP request. The /minerva/moUser/update endpoint accepts a manipulated identifier field from users with user-modification rights without enforcing the requested privilege boundary. Exploitation requires user-modification privileges and direct request crafting because the graphical interface does not expose the escalation path.

CVSS severity8.5
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authorization in MphRx Minerva 3.6.0 allows remote authenticated users to obtain administrator privileges via an HTTP request. The /minerva/moUser/update endpoint accepts a manipulated identifier field from users with user-modification rights without enforcing the requested privilege boundary. Exploitation requires user-modification privileges and direct request crafting because the graphical interface does not expose the escalation path.

The record

CVE
CVE-2026-5781
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
mphrX
Product
Minerva
Classifications
CWE-285, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

mphrX · Minervaversion=3.6.0

Published CVSS scores

8.5INCIBECVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo