CVE-2025-12952

Privilege Escalation in Dialogflow CX via Webhook Admin Role

Published Dec 10, 2025 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
A privilege escalation vulnerability exists in Google Cloud's Dialogflow CX.

Dialogflow agent developers with Webhook editor permission are able to configure Webhooks using Dialogflow service agent access token authentication.
This allows the attacker to escalate their privileges from agent-level to project-level, granting them unauthorized access to manage resources in services associated with the project, leading to unexpected costs and resource depletion for the producer project.

A fix was applied on the server side to protect from this vulnerability in February 2025. No customer action is required.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Google
Google cloud Dialogflow Cx
Vendors & Products Google
Google cloud Dialogflow Cx
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A privilege escalation vulnerability exists in Google Cloud's Dialogflow CX. Dialogflow agent developers with Webhook editor permission are able to configure Webhooks using Dialogflow service agent access token authentication. This allows the attacker to escalate their privileges from agent-level to project-level, granting them unauthorized access to manage resources in services associated with the project, leading to unexpected costs and resource depletion for the producer project. A fix was applied on the server side to protect from this vulnerability in February 2025. No customer action is required.
Title Privilege Escalation in Dialogflow CX via Webhook Admin Role
Weaknesses CWE-269
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/U:Clear'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GoogleCloud
Published
Updated
Dec 10, 2025, 3:05 PM
Reserved
Nov 10, 2025, 1:42 PM
Status
Deferred
Published
Dec 10, 2025, 8:16 AM
Modified
Oct 14, 2026, 9:10 PM