CVE-2025-1520

PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability

CVSS 7.1 HIGHEPSS 0.4%CWE-89

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.1EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

23 Apr 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of PostHog. Authentication is required to exploit this vulnerability. The specific flaw exists within the implementation of the SQL parser. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of the database account. Was ZDI-CAN-25350.

CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

PostHog · PostHog

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References

https://github.com/PostHog/posthog/commit/6e8f035f9acd339c5ba87ba6ea40fc1ab3053d42 https://www.zerodayinitiative.com/advisories/ZDI-25-099/