CVE-2026-85177Public exploitNetwork attack vectorHinoki check available

Authenticated inbox-message tampering via unchecked message ID

Published Sep 3, 2026 · Updated Sep 3, 2026

Authorization bypass in CRMEB 6.0.0 and earlier allows remote authenticated users to alter other users' system inbox messages. MessageSystemController.php accepts attacker-controlled id, key, and value parameters and updates the selected row without adding the requester's uid as an ownership predicate. Any customer account can soft-delete victim notifications, mark them read, or reassign their ownership.

CVSS severity5.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in CRMEB 6.0.0 and earlier allows remote authenticated users to alter other users' system inbox messages. MessageSystemController.php accepts attacker-controlled id, key, and value parameters and updates the selected row without adding the requester's uid as an ownership predicate. Any customer account can soft-delete victim notifications, mark them read, or reassign their ownership.

The record

CVE
CVE-2026-85177
Published
Sep 3, 2026
Updated
Sep 3, 2026
Vendor
CRMEB
Product
CRMEB
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 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=0 <=6.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CRMEB · CRMEBversion=0 <=6.0.0

Published CVSS scores

5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
5.4VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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.

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

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-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

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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