CVE-2026-53902Network attack vector

Authenticated privilege escalation via unchecked group assignment

Published Jul 1, 2026 · Updated Jul 1, 2026

Incorrect authorization in MyComplianceOffice 25.3.3.1 allows remote authenticated users to escalate privileges through group membership. The group-membership endpoint accepts a caller-supplied group ID and adds the caller without verifying authorization for the requested group. A valid account and group ID are required; the ID can be retrieved through permitted application functions or inferred by guessing.

CVSS severity7.1
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in MyComplianceOffice 25.3.3.1 allows remote authenticated users to escalate privileges through group membership. The group-membership endpoint accepts a caller-supplied group ID and adds the caller without verifying authorization for the requested group. A valid account and group ID are required; the ID can be retrieved through permitted application functions or inferred by guessing.

The record

CVE
CVE-2026-53902
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
MyComplianceOffice
Product
MyComplianceOffice
Classifications
CWE-266, CWE-863, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

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

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=25.3.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MyComplianceOffice · MyComplianceOfficeversion=25.3.3.1

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
7.1CERT.PLCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

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-266Incorrect Privilege Assignment
CWE-863Incorrect 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

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Your stack

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