Privilege Escalation in Dialogflow CX via Webhook Admin Role
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Dialogflow CX (Google Cloud) Fixed in 2025-02
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12952
- 2026-10-03 Alias added: GHSA-2cpv-h844-jg2r
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Sources
- CVE-2025-12952 · CVE Program
- CVE-2025-12952 · NVD
- FIRST EPSS
- GHSA-2cpv-h844-jg2r · GitHub Advisory Database · CC BY 4.0
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