Domain user impersonation via local WebSocket spoofing
Published Dec 10, 2025 · Updated Dec 10, 2025
Authentication bypass in all versions of GTT Sistema de Información Tributario allows attackers to assume any domain identity via WebSocket spoofing. The web application accepts authentication data from a local WebSocket without validating its authenticity or origin, so a counterfeit endpoint can inject a chosen user's identity. Access to the host or internal network is required; successful exploitation grants application access as any domain user and exposes that user's data and actions.
Summary
What happened
Authentication bypass in all versions of GTT Sistema de Información Tributario allows attackers to assume any domain identity via WebSocket spoofing. The web application accepts authentication data from a local WebSocket without validating its authenticity or origin, so a counterfeit endpoint can inject a chosen user's identity. Access to the host or internal network is required; successful exploitation grants application access as any domain user and exposes that user's data and actions.
The record
- CVE
- CVE-2025-13953
- Published
- Dec 10, 2025
- Updated
- Dec 10, 2025
- Vendor
- Gestión Tributaria Territorial
- Product
- Sistema de Información Tributario
- Classifications
- CWE-290, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 10, 2025CVE publishedPublication date reported by the CVE source.
- Dec 10, 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?
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- Affected versionversion=All versions
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Technologies
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