CVE-2019-25138Public exploitNetwork attack vector

Unauthenticated executable upload via forged GIF headers

Published Jun 7, 2023 · Updated Apr 8, 2026

Arbitrary file upload in Plugin Planet User Submitted Posts before 20190426 allows remote attackers to upload executable files. The usp_check_images function trusts exif_imagetype and getimagesize, so an 11-byte GIF header can conceal appended PHP code. No login is required; code execution occurs when image uploads are enabled and Apache with PHP FastCGI executes a double-extension file.

CVSS severity9.8
Critical
EPSS probability2.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in Plugin Planet User Submitted Posts before 20190426 allows remote attackers to upload executable files. The usp_check_images function trusts exif_imagetype and getimagesize, so an 11-byte GIF header can conceal appended PHP code. No login is required; code execution occurs when image uploads are enabled and Apache with PHP FastCGI executes a double-extension file.

The record

CVE
CVE-2019-25138
Published
Jun 7, 2023
Updated
Apr 8, 2026
Vendor
Plugin Planet
Product
User Submitted Posts
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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=0 <20190426

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Plugin Planet · User Submitted Postsversion=0 <20190426

Published CVSS scores

9.8WordfenceCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
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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