CVE-2025-3087Network attack vector

Authenticated script execution in another user's browser

Published Apr 4, 2025 · Updated Feb 23, 2026

Stored XSS in M-Files Web 25.1.14445.5 through versions before 25.2.14524.4 allows remote authenticated users to run scripts in a user's browser. M-Files has not published the affected input field, storage locus, or missing output-encoding operation that causes the stored payload to execute. Exploitation requires an authenticated user to store a payload and passive viewing by another user; execution is confined to the viewer's web context, with no reported service interruption.

CVSS severity5.1
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in M-Files Web 25.1.14445.5 through versions before 25.2.14524.4 allows remote authenticated users to run scripts in a user's browser. M-Files has not published the affected input field, storage locus, or missing output-encoding operation that causes the stored payload to execute. Exploitation requires an authenticated user to store a payload and passive viewing by another user; execution is confined to the viewer's web context, with no reported service interruption.

The record

CVE
CVE-2025-3087
Published
Apr 4, 2025
Updated
Feb 23, 2026
Vendor
M-Files
Product
M-Files Web
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 23, 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=25.1.14445.5 <25.2.14524.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

M-Files · M-Files Webversion=25.1.14445.5 <25.2.14524.4

Published CVSS scores

5.1M-Files CorporationCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

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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