CVE-2025-13902Network attack vector

Authenticated browser script execution via unneutralized hover payload

Published Mar 10, 2026 · Updated Mar 10, 2026

Cross-site scripting in Schneider Electric Modicon M241/M251 and M258/LMC058 controllers allows remote authenticated users to run browser JavaScript. The controller web server renders an injected, maliciously crafted element without adequately neutralizing it; hovering over the element triggers the payload. Authenticated access is required to plant the payload, and a victim must hover over it; execution remains within the victim's browser context.

CVSS severity5.1
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Schneider Electric Modicon M241/M251 and M258/LMC058 controllers allows remote authenticated users to run browser JavaScript. The controller web server renders an injected, maliciously crafted element without adequately neutralizing it; hovering over the element triggers the payload. Authenticated access is required to plant the payload, and a victim must hover over it; execution remains within the victim's browser context.

The record

CVE
CVE-2025-13902
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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?

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

5.1Schneider ElectricCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1203Exploitation for Client Execution

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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