CVE-2024-6528Network attack vector

Browser script execution via stored Web UI payload

Published Jul 11, 2024 · Updated Aug 1, 2024

Stored XSS in Schneider Electric Modicon M262 before 5.2.8.26 allows remote authenticated users to run JavaScript in a victim's browser. The controller Web UI accepts attacker-supplied JavaScript and later renders the stored payload without neutralizing it when another user opens the affected page. Low-privileged controller access and a victim visit are required; execution in the trusted browser session can alter displayed content or expose session credentials.

CVSS severity5.4
Medium
EPSS probability0.26%
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 Schneider Electric Modicon M262 before 5.2.8.26 allows remote authenticated users to run JavaScript in a victim's browser. The controller Web UI accepts attacker-supplied JavaScript and later renders the stored payload without neutralizing it when another user opens the affected page. Low-privileged controller access and a victim visit are required; execution in the trusted browser session can alter displayed content or expose session credentials.

The record

CVE
CVE-2024-6528
Published
Jul 11, 2024
Updated
Aug 1, 2024
Vendor
Distributed Data Systems
Product
Modicon M262
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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=All Versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Distributed Data Systems · Modicon M262version=All Versions

Published CVSS scores

5.4Schneider ElectricCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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')
T1189Drive-by Compromise

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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