CVE-2026-7673 — Crmeb_java Unrestricted File Upload

CVE-2026-7673 — Crmeb_java Unrestricted File Upload

CVE-2026-7673 — A vulnerability was detected in crmeb_java up to 1.3.4. This vulnerability affects unknown code of the file crmeb/crmeb-service/src/main/java/com/zbkj/service/service/impl/UploadServiceImpl.java of the component Admin Upload. Performing a manipulation of the argument model results in

What This Means For You

  • If your environment is affected by CWE-284, CWE-434, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-7673 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

3 rules · 6 SIEM formats

3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

critical T1190 Initial Access

CVE-2026-7673 - Crmeb_java Unrestricted File Upload Attempt

Sigma YAML — free preview
title: CVE-2026-7673 - Crmeb_java Unrestricted File Upload Attempt
id: scw-2026-05-03-ai-1
status: experimental
level: critical
description: |
  Detects attempts to exploit CVE-2026-7673 by identifying POST requests to the '/admin/upload' endpoint that include the 'model' parameter, which is manipulated to achieve unrestricted file upload in crmeb_java up to version 1.3.4.
author: SCW Feed Engine (AI-generated)
date: 2026-05-03
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-7673/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-method:
          - 'POST'
      uri|contains:
          - '/admin/upload'
      cs-uri-query|contains:
          - 'model'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-7673 vulnerability CVE-2026-7673
CWE-284 weakness CWE-284
CWE-434 weakness CWE-434
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 03, 2026 at 05:17 UTC

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