CVE-2023-3852Public exploitNetwork attack vector

Authenticated code execution via unrestricted PHP upload

Published Jul 23, 2023 · Updated Aug 2, 2024

Unrestricted file upload in OpenRapid RapidCMS 1.3.0 and 1.3.1 allows remote authenticated users to execute PHP code. The /admin/upload.php handler accepts a client-supplied PHP filename and content without enforcing an extension allowlist, then stores it under /upload. Administrative access to article editing is required; a stored PHP web shell executes with the web server's privileges.

CVSS severity7.2
High
EPSS probability25.24%
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 OpenRapid RapidCMS 1.3.0 and 1.3.1 allows remote authenticated users to execute PHP code. The /admin/upload.php handler accepts a client-supplied PHP filename and content without enforcing an extension allowlist, then stores it under /upload. Administrative access to article editing is required; a stored PHP web shell executes with the web server's privileges.

The record

CVE
CVE-2023-3852
Published
Jul 23, 2023
Updated
Aug 2, 2024
Vendor
OpenRapid
Product
RapidCMS
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=1.3.0
  2. Affected versionversion=1.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OpenRapid · RapidCMSversion=1.3.0; version=1.3.1

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Web 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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