CVE-2026-38329

CRITICAL

Bludit CMS < 3.18.4 - Remote Code Execution via API Plugin File Upload

Title source: llm

Description

Bludit CMS before version 3.18.4 allows Remote Code Execution (RCE) via the API Plugin. The POST /api/files/{key} endpoint in bl-plugins/api/plugin.php fails to perform authorization checks and lacks file extension validation. An attacker with a valid API token can upload a malicious PHP script and execute arbitrary code on the server.

References (1)

Core 1

Core References

https://gist.github.com/Ki1ro0133/8bd14bd4fc6fab81c907d838a7aeee55

Scores

CVSS v3 9.8

EPSS 0.0050

EPSS Percentile 39.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-862

Status published

Published Jun 15, 2026

Tracked Since Jun 16, 2026