CVE-2025-22389Network attack vector

User compromise via authenticated dangerous-file upload

Published Jan 4, 2025 · Updated Feb 11, 2025

Unrestricted file upload in Optimizely EPiServer.CMS.UI before 12.32.0 allows remote authenticated users to upload dangerous files. Optimizely has not identified the responsible upload handler; its advisory states that file-type validation accepts active formats such as .docm and .html. An application user must later access the stored file, at which point its active content can execute malicious actions in that user's context and compromise the user's system.

CVSS severity8.0
High
EPSS probability0.49%
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 Optimizely EPiServer.CMS.UI before 12.32.0 allows remote authenticated users to upload dangerous files. Optimizely has not identified the responsible upload handler; its advisory states that file-type validation accepts active formats such as .docm and .html. An application user must later access the stored file, at which point its active content can execute malicious actions in that user's context and compromise the user's system.

The record

CVE
CVE-2025-22389
Published
Jan 4, 2025
Updated
Feb 11, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1204.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1204.002Malicious File

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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