CVE-2024-8699Public exploitNetwork attack vector

Administrator code execution via unchecked replacement upload

Published May 15, 2025 · Updated May 20, 2025

Arbitrary file upload in URBAN BASE Z-Downloads before 1.11.5 allows remote authenticated users to execute server-side code. The Replace file function accepts a PHP web shell without validating its file type, stores it under the web-accessible uploads tree, and exposes its location in plugin logs. Administrator-level access is required, and successful exploitation grants the privileges of the WordPress server process.

CVSS severity7.2
High
EPSS probability0.67%
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 URBAN BASE Z-Downloads before 1.11.5 allows remote authenticated users to execute server-side code. The Replace file function accepts a PHP web shell without validating its file type, stores it under the web-accessible uploads tree, and exposes its location in plugin logs. Administrator-level access is required, and successful exploitation grants the privileges of the WordPress server process.

The record

CVE
CVE-2024-8699
Published
May 15, 2025
Updated
May 20, 2025
Vendor
URBAN BASE
Product
Z-Downloads
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 15, 2025CVE publishedPublication date reported by the CVE source.
  2. May 20, 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=0 <1.11.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

URBAN BASE · Z-Downloadsversion=0 <1.11.5

Published CVSS scores

7.2CISA-ADPCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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