CVE-2011-4511 — Cross-site scripting (XSS) vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2011-4510

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MEDIUM

Cross-site scripting (XSS) vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2011-4510

Published Feb 3, 2012

4.3

MEDIUM

CVSS 2.0

EPSS 1.42%

Description

Cross-site scripting (XSS) vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2011-4510.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.42% 0.01420

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01420

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.42% (0.01420)	71.86th	v5 (v2026.06.15)
Jun 15, 2026	1.50% (0.01503)	70.89th	v5 (v2026.06.15)
Mar 17, 2025	0.39% (0.00385)	57.65th	v4 (v2025.03.14)
Dec 12, 2024	0.15% (0.00155)	53.11th	v3 (v2023.03.01)
Apr 25, 2024	0.21% (0.00211)	58.64th	v3 (v2023.03.01)
Mar 15, 2024	0.19% (0.00195)	56.33th	v3 (v2023.03.01)
Feb 8, 2024	0.14% (0.00137)	47.88th	v3 (v2023.03.01)
Mar 7, 2023	0.15% (0.00155)	49.91th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (2)

http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf
x_refsource_CONFIRMVendor Advisory
http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf
x_refsource_MISCUS Government Resource

Link	Providers	Tags
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf		x_refsource_CONFIRMVendor Advisory
http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf		x_refsource_MISCUS Government Resource

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner certcc

Published Feb 3, 2012

Updated Sep 16, 2024

Reserved Nov 22, 2011

Link CVE-2011-4511

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-4511

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-4511