Siemens SIMATIC S7-150 up to 3.1.5 Web Interface communication cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Siemens SIMATIC Drive Controller CPU 1504D TF, SIMATIC Drive Controller CPU 1507D TF, SIMATIC ET 200SP CPU 1510SP F-1 PN, SIMATIC ET 200SP CPU 1510SP-1 PN, SIMATIC ET 200SP CPU 1512SP F-1 PN, SIMATIC ET 200SP CPU 1512SP-1 PN, SIMATIC ET 200SP CPU 1514SP F-2 PN, SIMATIC ET 200SP CPU 1514SP-2 PN, SIMATIC ET 200SP CPU 1514SPT F-2 PN, SIMATIC ET 200SP CPU 1514SPT-2 PN, SIMATIC ET 200SP Open Controller CPU 1515SP PC, SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V2 CPUs, SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V3 CPUs, SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs, SIMATIC S7-1500 CPU 1511-1 PN, SIMATIC S7-1500 CPU 1511C-1 PN, SIMATIC S7-1500 CPU 1511F-1 PN, SIMATIC S7-1500 CPU 1511T-1 PN, SIMATIC S7-1500 CPU 1511TF-1 PN, SIMATIC S7-1500 CPU 1512C-1 PN, SIMATIC S7-1500 CPU 1513-1 PN, SIMATIC S7-1500 CPU 1513F-1 PN, SIMATIC S7-1500 CPU 1513pro F-2 PN, SIMATIC S7-1500 CPU 1513pro-2 PN, SIMATIC S7-1500 CPU 1515-2 PN, SIMATIC S7-1500 CPU 1515F-2 PN, SIMATIC S7-1500 CPU 1515T-2 PN, SIMATIC S7-1500 CPU 1515TF-2 PN, SIMATIC S7-1500 CPU 1516-3 PN, DP, SIMATIC S7-1500 CPU 1516F-3 PN, SIMATIC S7-1500 CPU 1516pro F-2 PN, SIMATIC S7-1500 CPU 1516pro-2 PN, SIMATIC S7-1500 CPU 1516T-3 PN, SIMATIC S7-1500 CPU 1516TF-3 PN, SIMATIC S7-1500 CPU 1517-3 PN, SIMATIC S7-1500 CPU 1517F-3 PN, SIMATIC S7-1500 CPU 1517T-3 PN, SIMATIC S7-1500 CPU 1517TF-3 PN, SIMATIC S7-1500 CPU 1518-3 PN, SIMATIC S7-1500 CPU 1518-4 PN, DP MFP, SIMATIC S7-1500 CPU 1518F-3 PN, SIMATIC S7-1500 CPU 1518F-4 PN, SIMATIC S7-1500 CPU 1518T-3 PN, SIMATIC S7-1500 CPU 1518T-4 PN, SIMATIC S7-1500 CPU 1518TF-3 PN, SIMATIC S7-1500 CPU 1518TF-4 PN, SIMATIC S7-1500 CPU S7-1518-4 PN, DP ODK, SIMATIC S7-1500 CPU S7-1518F-4 PN, SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN, SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN, SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN, SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN, SIMATIC S7-1500 Software Controller CPU 1507S F V2, SIMATIC S7-1500 Software Controller CPU 1507S F V3, SIMATIC S7-1500 Software Controller CPU 1507S F V4, SIMATIC S7-1500 Software Controller CPU 1507S V2, SIMATIC S7-1500 Software Controller CPU 1507S V3, SIMATIC S7-1500 Software Controller CPU 1507S V4, SIMATIC S7-1500 Software Controller CPU 1508S F V2, SIMATIC S7-1500 Software Controller CPU 1508S F V3, SIMATIC S7-1500 Software Controller CPU 1508S F V4, SIMATIC S7-1500 Software Controller CPU 1508S T V3, SIMATIC S7-1500 Software Controller CPU 1508S TF V3, SIMATIC S7-1500 Software Controller CPU 1508S V2, SIMATIC S7-1500 Software Controller CPU 1508S V3 and SIMATIC S7-150 up to 3.1.5. This affects an unknown part of the component Web Interface. Performing a manipulation of the argument communication results in cross site scripting. This vulnerability is identified as CVE-2026-25786. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Siemens SIMATIC Drive Controller CPU 1504D TF, SIMATIC Drive Controller CPU 1507D TF, SIMATIC ET 200SP CPU 1510SP F-1 PN, SIMATIC ET 200SP CPU 1510SP-1 PN, SIMATIC ET 200SP CPU 1512SP F-1 PN, SIMATIC ET 200SP CPU 1512SP-1 PN, SIMATIC ET 200SP CPU 1514SP F-2 PN, SIMATIC ET 200SP CPU 1514SP-2 PN, SIMATIC ET 200SP CPU 1514SPT F-2 PN, SIMATIC ET 200SP CPU 1514SPT-2 PN, SIMATIC ET 200SP Open Controller CPU 1515SP PC, SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V2 CPUs, SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V3 CPUs, SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs, SIMATIC S7-1500 CPU 1511-1 PN, SIMATIC S7-1500 CPU 1511C-1 PN, SIMATIC S7-1500 CPU 1511F-1 PN, SIMATIC S7-1500 CPU 1511T-1 PN, SIMATIC S7-1500 CPU 1511TF-1 PN, SIMATIC S7-1500 CPU 1512C-1 PN, SIMATIC S7-1500 CPU 1513-1 PN, SIMATIC S7-1500 CPU 1513F-1 PN, SIMATIC S7-1500 CPU 1513pro F-2 PN, SIMATIC S7-1500 CPU 1513pro-2 PN, SIMATIC S7-1500 CPU 1515-2 PN, SIMATIC S7-1500 CPU 1515F-2 PN, SIMATIC S7-1500 CPU 1515T-2 PN, SIMATIC S7-1500 CPU 1515TF-2 PN, SIMATIC S7-1500 CPU 1516-3 PN, DP, SIMATIC S7-1500 CPU 1516F-3 PN, SIMATIC S7-1500 CPU 1516pro F-2 PN, SIMATIC S7-1500 CPU 1516pro-2 PN, SIMATIC S7-1500 CPU 1516T-3 PN, SIMATIC S7-1500 CPU 1516TF-3 PN, SIMATIC S7-1500 CPU 1517-3 PN, SIMATIC S7-1500 CPU 1517F-3 PN, SIMATIC S7-1500 CPU 1517T-3 PN, SIMATIC S7-1500 CPU 1517TF-3 PN, SIMATIC S7-1500 CPU 1518-3 PN, SIMATIC S7-1500 CPU 1518-4 PN, DP MFP, SIMATIC S7-1500 CPU 1518F-3 PN, SIMATIC S7-1500 CPU 1518F-4 PN, SIMATIC S7-1500 CPU 1518T-3 PN, SIMATIC S7-1500 CPU 1518T-4 PN, SIMATIC S7-1500 CPU 1518TF-3 PN, SIMATIC S7-1500 CPU 1518TF-4 PN, SIMATIC S7-1500 CPU S7-1518-4 PN, DP ODK, SIMATIC S7-1500 CPU S7-1518F-4 PN, SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN, SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN, SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN, SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN, SIMATIC S7-1500 Software Controller CPU 1507S F V2, SIMATIC S7-1500 Software Controller CPU 1507S F V3, SIMATIC S7-1500 Software Controller CPU 1507S F V4, SIMATIC S7-1500 Software Controller CPU 1507S V2, SIMATIC S7-1500 Software Controller CPU 1507S V3, SIMATIC S7-1500 Software Controller CPU 1507S V4, SIMATIC S7-1500 Software Controller CPU 1508S F V2, SIMATIC S7-1500 Software Controller CPU 1508S F V3, SIMATIC S7-1500 Software Controller CPU 1508S F V4, SIMATIC S7-1500 Software Controller CPU 1508S T V3, SIMATIC S7-1500 Software Controller CPU 1508S TF V3, SIMATIC S7-1500 Software Controller CPU 1508S V2, SIMATIC S7-1500 Software Controller CPU 1508S V3 and SIMATIC S7-150 up to 3.1.5. This affects some unknown processing of the component Web Interface. The manipulation of the argument communication with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters page of the web interface. This could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page. If a benign user with appropriate rights accesses the "communication" parameters page, the malicious code would be executed in the scope of their web session.

It is possible to read the advisory at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2026-25786 since 02/05/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation needs additional levels of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/12/2026). The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 3.1.6 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1474). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Siemens SIMATIC S7

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.1
CNA Vector (siemens): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SIMATIC Drive Controller CPU 1504D TF/SIMATIC Drive Controller CPU 1507D TF/SIMATIC ET 200SP CPU 1510SP F-1 PN/SIMATIC ET 200SP CPU 1510SP-1 PN/SIMATIC ET 200SP CPU 1512SP F-1 PN/SIMATIC ET 200SP CPU 1512SP-1 PN/SIMATIC ET 200SP CPU 1514SP F-2 PN/SIMATIC ET 200SP CPU 1514SP-2 PN/SIMATIC ET 200SP CPU 1514SPT F-2 PN/SIMATIC ET 200SP CPU 1514SPT-2 PN/SIMATIC ET 200SP Open Controller CPU 1515SP PC/SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V2 CPUs/SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V3 CPUs/SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs/SIMATIC S7-1500 CPU 1511-1 PN/SIMATIC S7-1500 CPU 1511C-1 PN/SIMATIC S7-1500 CPU 1511F-1 PN/SIMATIC S7-1500 CPU 1511T-1 PN/SIMATIC S7-1500 CPU 1511TF-1 PN/SIMATIC S7-1500 CPU 1512C-1 PN/SIMATIC S7-1500 CPU 1513-1 PN/SIMATIC S7-1500 CPU 1513F-1 PN/SIMATIC S7-1500 CPU 1513pro F-2 PN/SIMATIC S7-1500 CPU 1513pro-2 PN/SIMATIC S7-1500 CPU 1515-2 PN/SIMATIC S7-1500 CPU 1515F-2 PN/SIMATIC S7-1500 CPU 1515T-2 PN/SIMATIC S7-1500 CPU 1515TF-2 PN/SIMATIC S7-1500 CPU 1516-3 PN/DP/SIMATIC S7-1500 CPU 1516F-3 PN/SIMATIC S7-1500 CPU 1516pro F-2 PN/SIMATIC S7-1500 CPU 1516pro-2 PN/SIMATIC S7-1500 CPU 1516T-3 PN/SIMATIC S7-1500 CPU 1516TF-3 PN/SIMATIC S7-1500 CPU 1517-3 PN/SIMATIC S7-1500 CPU 1517F-3 PN/SIMATIC S7-1500 CPU 1517T-3 PN/SIMATIC S7-1500 CPU 1517TF-3 PN/SIMATIC S7-1500 CPU 1518-3 PN/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP/SIMATIC S7-1500 CPU 1518F-3 PN/SIMATIC S7-1500 CPU 1518F-4 PN/SIMATIC S7-1500 CPU 1518T-3 PN/SIMATIC S7-1500 CPU 1518T-4 PN/SIMATIC S7-1500 CPU 1518TF-3 PN/SIMATIC S7-1500 CPU 1518TF-4 PN/SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK/SIMATIC S7-1500 CPU S7-1518F-4 PN/SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN/SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN/SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN/SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN/SIMATIC S7-1500 Software Controller CPU 1507S F V2/SIMATIC S7-1500 Software Controller CPU 1507S F V3/SIMATIC S7-1500 Software Controller CPU 1507S F V4/SIMATIC S7-1500 Software Controller CPU 1507S V2/SIMATIC S7-1500 Software Controller CPU 1507S V3/SIMATIC S7-1500 Software Controller CPU 1507S V4/SIMATIC S7-1500 Software Controller CPU 1508S F V2/SIMATIC S7-1500 Software Controller CPU 1508S F V3/SIMATIC S7-1500 Software Controller CPU 1508S F V4/SIMATIC S7-1500 Software Controller CPU 1508S T V3/SIMATIC S7-1500 Software Controller CPU 1508S TF V3/SIMATIC S7-1500 Software Controller CPU 1508S V2/SIMATIC S7-1500 Software Controller CPU 1508S V3/SIMATIC S7-150 3.1.6

Timelineinfo

02/05/2026 CVE reserved
05/12/2026 +95 days Advisory disclosed
05/12/2026 +0 days VulDB entry created
05/12/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-688146
Status: Confirmed

CVE: CVE-2026-25786 (🔒)
GCVE (CVE): GCVE-0-2026-25786
GCVE (VulDB): GCVE-100-362991
CERT Bund: WID-SEC-2026-1474 - Siemens SIMATIC S7 PLCs Web Server: Mehrere Schwachstellen ermöglichen Cross-Site Scripting

Entryinfo

Created: 05/12/2026 11:44
Updated: 05/12/2026 13:54
Changes: 05/12/2026 11:44 (79), 05/12/2026 13:54 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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