Rockwell Automation ArmorStart ST Vulnerable to Cross-Site Scripting Attack

published 2023-05-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32631

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

A cross site scripting vulnerability was discovered in Rockwell Automation's ArmorStart ST product

that could potentially allow a malicious user with admin privileges and network access to view user data and modify the web interface. Additionally, a malicious user could potentially cause interruptions to the availability of the web page.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-136-02 updated 2023-05-18 cvss 4.7

Rockwell ArmorStart

Rockwell Automation ArmorStart ST280E Rockwell Automation ArmorStart ST281E >= 2.004.06 Rockwell Automation ArmorStart ST284E
affected: vendor fix manuals.plus

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 21 mo ago (2025-01-24)

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CISA ADP	3.1	5.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
NVD	3.1	5.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

Affected products

Rockwell Automation ArmorStart ST

Classification

Weakness

CWE-20 Improper Input Validation
CWE-79 Improper Neutralization of Input During Web Page Generation

References

rockwellautomation.custhelp.com /app/answers/answer_view/a_id/1139438
vendor-advisory

Sources

CVE List CVE-2023-29026
NVD CVE-2023-29026

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary