CVE-2025-5406Public exploitNetwork attack vector

Authenticated code execution via unchecked image upload

Published Jun 1, 2025 · Updated Jun 2, 2025

Unrestricted file upload in Chaitak Gorai Blogbook allows remote authenticated users to execute code through a crafted post image. admin/includes/add_post.php passes the image parameter's original filename directly to move_uploaded_file without checking its extension or content, placing it in the web-accessible images directory. An account permitted to create posts is required; successful upload and direct retrieval of a server-executable file grants code execution as the web server process.

CVSS severity8.8
High
EPSS probability0.47%
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 Chaitak Gorai Blogbook allows remote authenticated users to execute code through a crafted post image. admin/includes/add_post.php passes the image parameter's original filename directly to move_uploaded_file without checking its extension or content, placing it in the web-accessible images directory. An account permitted to create posts is required; successful upload and direct retrieval of a server-executable file grants code execution as the web server process.

The record

CVE
CVE-2025-5406
Published
Jun 1, 2025
Updated
Jun 2, 2025
Vendor
Chaitak Gorai
Product
Blogbook
Classifications
CWE-284, CWE-434, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2025Record 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=92f5cf90f8a7e6566b576fe0952e14e1c6736513

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Chaitak Gorai · Blogbookversion=92f5cf90f8a7e6566b576fe0952e14e1c6736513

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Server Software Component: Web Shell

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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