cvedb.io
CVE-2025-1521
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2025-04-23T17:16:52.387 · Last modified 2026-06-17T08:39:17.903

Summary

PostHog slack_incoming_webhook Server-Side Request Forgery Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PostHog. Authentication is required to exploit this vulnerability. The specific flaw exists within the processing of the slack_incoming_webhook parameter. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-25352.

Affected products

posthog — posthog

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.