CVE-2025-29556Public exploitNetwork attack vector

Authenticated privilege escalation via user-creation API tampering

Published Jul 31, 2025 · Updated Jul 31, 2025

Incorrect access control in ExaGrid EX10 6.3 through 7.0.1.P08 allows remote authenticated users to create Security Officer accounts. The user-creation API accepts a POST to /api/v1/sites/{uuid}/users with the client-supplied group set to exagrid-sec-offs without enforcing the approval boundary. A valid JSESSIONIDSSO cookie and site UUID are required; successful abuse grants control over backup operations, users, and encryption settings.

CVSS severity7.3
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in ExaGrid EX10 6.3 through 7.0.1.P08 allows remote authenticated users to create Security Officer accounts. The user-creation API accepts a POST to /api/v1/sites/{uuid}/users with the client-supplied group set to exagrid-sec-offs without enforcing the approval boundary. A valid JSESSIONIDSSO cookie and site UUID are required; successful abuse grants control over backup operations, users, and encryption settings.

The record

CVE
CVE-2025-29556
Published
Jul 31, 2025
Updated
Jul 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1098, T1136
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1098Account Manipulation
T1136Create Account

Public exploit references

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

Technologies

Your stack

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Your stack

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