CVE-2026-58113Network attack vector

Session actions via reflected authentication-redirect script

Published Sep 8, 2026 · Updated Sep 9, 2026

Reflected XSS in Siemens Teamcenter allows remote attackers to run JavaScript in authenticated users' browsers through crafted URLs. The /auth/ authentication redirect flow reflects user-supplied input into HTML attribute contexts without proper output encoding. An authenticated user must load the crafted URL; the injected script then runs in that user's browser and can read data or perform actions within the Teamcenter session.

CVSS severity8.5
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Siemens Teamcenter allows remote attackers to run JavaScript in authenticated users' browsers through crafted URLs. The /auth/ authentication redirect flow reflects user-supplied input into HTML attribute contexts without proper output encoding. An authenticated user must load the crafted URL; the injected script then runs in that user's browser and can read data or perform actions within the Teamcenter session.

The record

CVE
CVE-2026-58113
Published
Sep 8, 2026
Updated
Sep 9, 2026
Vendor
Siemens
Product
Teamcenter
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record 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=0 <V2412.0013
  2. Affected versionversion=0 <V2506.0010
  3. Affected versionversion=0 <V2512.2607
  4. Affected versionversion=0 <V2606.2607

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · Teamcenterversion=0 <V2412.0013; version=0 <V2506.0010; version=0 <V2512.2607; version=0 <V2606.2607

Published CVSS scores

8.5Siemens ProductCERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
6.1Siemens ProductCERTCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution Malicious Link

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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