CVE-2026-38329Public exploitNetwork attack vector

Authenticated remote code execution via API file upload

Published Jun 15, 2026 · Updated Jun 15, 2026

Remote code execution in Bludit CMS before 3.18.4 allows attackers with a valid API token to execute arbitrary server code. The POST /api/files/{key} handler in bl-plugins/api/plugin.php skips its write-permission check, while uploadFile accepts the supplied filename without extension filtering. An enabled API Plugin and a valid API token are required; a read-only token suffices to place a PHP script in a web-accessible upload path for execution.

CVSS severity9.8
Critical
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Bludit CMS before 3.18.4 allows attackers with a valid API token to execute arbitrary server code. The POST /api/files/{key} handler in bl-plugins/api/plugin.php skips its write-permission check, while uploadFile accepts the supplied filename without extension filtering. An enabled API Plugin and a valid API token are required; a read-only token suffices to place a PHP script in a web-accessible upload path for execution.

The record

CVE
CVE-2026-38329
Published
Jun 15, 2026
Updated
Jun 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1505.003, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 15, 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?

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

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-862Missing Authorization
T1505.003Server Software Component: Web Shell
T1190Exploit Public-Facing Application

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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