CVE-2020-14502Network attack vector

Homepage text modification via stored script injection

Published Feb 24, 2022 · Updated Apr 17, 2025

Stored XSS in Rockwell Automation 1734-AENTR Series B and C allows remote attackers to alter homepage text through its web interface. Affected firmware stores script-bearing form input and renders it on the Home page without effective input validation or output neutralization; the vendor does not identify the exact field. Exploitation requires a user to load the tainted Home page, and the reported consequence is limited to modification of displayed string values.

CVSS severity4.7
Medium
EPSS probability1.01%
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 Rockwell Automation 1734-AENTR Series B and C allows remote attackers to alter homepage text through its web interface. Affected firmware stores script-bearing form input and renders it on the Home page without effective input validation or output neutralization; the vendor does not identify the exact field. Exploitation requires a user to load the tainted Home page, and the reported consequence is limited to modification of displayed string values.

The record

CVE
CVE-2020-14502
Published
Feb 24, 2022
Updated
Apr 17, 2025
Vendor
Rockwell Automation
Product
1734-AENTR
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Series B 4.001 to 4.005, and 5.011 to 5.017
  2. Affected versionversion=Series C 6.011 and 6.012

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rockwell Automation · 1734-AENTRversion=Series B 4.001 to 4.005, and 5.011 to 5.017; version=Series C 6.011 and 6.012

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.7Rockwell AutomationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/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
Privilegesunauthenticated
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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