CVE-2025-1520 HIGH

CVE-2025-1520: PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability

Vendor Posthog
Product PostHog
Weakness CWE-89 · SQLi
Published April 23, 2025
Last update April 23, 2025

CVSS base score

7.1/10
Attack vector Adjacent
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 23, 2025 CVE published
April 23, 2025 Record updated