CVE-2024-8918Network attack vector

Stored XSS via unchecked JavaScript file upload

Published Oct 16, 2024 · Updated Apr 8, 2026

Dangerous file upload in File Manager Pro 8.3.9 and earlier allows remote attackers to store JavaScript or CSS on WordPress sites. The upload path fails to enforce allowed file types, permitting active web content that can execute as stored cross-site scripting. Exploitation requires file-management permissions granted by an administrator, and successful uploads can run script in a visitor's site context.

CVSS severity7.4
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Dangerous file upload in File Manager Pro 8.3.9 and earlier allows remote attackers to store JavaScript or CSS on WordPress sites. The upload path fails to enforce allowed file types, permitting active web content that can execute as stored cross-site scripting. Exploitation requires file-management permissions granted by an administrator, and successful uploads can run script in a visitor's site context.

The record

CVE
CVE-2024-8918
Published
Oct 16, 2024
Updated
Apr 8, 2026
Vendor
File Manager
Product
File Manager Pro
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 16, 2024CVE 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 <=8.3.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

File Manager · File Manager Proversion=0 <=8.3.9

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.4WordfenceCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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