CVE-2026-7043Public exploitNetwork attack vector

Authenticated dangerous-file upload via plugin ZIP import

Published Apr 26, 2026 · Updated Apr 26, 2026

Unrestricted file upload in GreenCMS 2.0 through 2.3 allows remote authenticated users to write dangerous files via plugin import. The pluginAddLocal method accepts an uploaded ZIP into WEB_CACHE_PATH and sends its path directly to UpdateEvent::applyPatch, without restricting dangerous archive content at the upload boundary. An authenticated session with access to the administrative plugin-add endpoint is required; a crafted plugin archive can place attacker-controlled files where GreenCMS processes them.

CVSS severity6.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in GreenCMS 2.0 through 2.3 allows remote authenticated users to write dangerous files via plugin import. The pluginAddLocal method accepts an uploaded ZIP into WEB_CACHE_PATH and sends its path directly to UpdateEvent::applyPatch, without restricting dangerous archive content at the upload boundary. An authenticated session with access to the administrative plugin-add endpoint is required; a crafted plugin archive can place attacker-controlled files where GreenCMS processes them.

The record

CVE
CVE-2026-7043
Published
Apr 26, 2026
Updated
Apr 26, 2026
Vendor
GreenCMS
Product
GreenCMS
Classifications
CWE-434, CWE-284, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 26, 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=2.0
  2. Affected versionversion=2.1
  3. Affected versionversion=2.2
  4. Affected versionversion=2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GreenCMS · GreenCMSversion=2.0; version=2.1; version=2.2; version=2.3

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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-434Unrestricted Upload of File with Dangerous Type
CWE-284Improper Access Control
T1105Ingress Tool Transfer

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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