MEDIUMCVSS v3.1 4.8Vulnerability
CVE-2026-128334
listmonk 6.2.0 before 7.0.0-beta.2 contains a missing authentication vulnerability that allows unauthenticated attackers to submit Azure Event Grid bounce webhooks when no shared secret is configured. Attackers can POST forged EmailDeliveryReportReceived events with Bounced status to /webhooks/service/azure to blocklist, unsubscribe, or delete arbitrary subscribers.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-14T00:40:25.638091+00:00
- Epss score
- 0.00464
- Cvss severity
- MEDIUM
- Cvss score
- 4.8
- Retrieved at
- 2026-11-14T00:51:03+00:00
- Last source
- FIRST EPSS
- Score
- 4.8
- Cvss version
- 3.1
- Cve id
- CVE-2026-128334
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
- First seen by Signal
- 2026-11-13T17:31:47+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
- Published at
- 2026-11-13T10:18:13.370
- Last modified
- 2026-11-13T10:18:13.513
- Epss percentile
- 0.40702
Related Entities (1)
HAS_WEAKNESS (1)
Related research
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