CVE-2025-1520

Description

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.

PUBLISHED Reserved 2025-02-20 | Published 2025-04-23 | Updated 2025-04-23 | Assigner zdi

Problem types

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Product status

References

www.zerodayinitiative.com/advisories/ZDI-25-099/ (ZDI-25-099)

github.com/...ommit/6e8f035f9acd339c5ba87ba6ea40fc1ab3053d42 (vendor-provided URL) vendor-advisory

cve.org (CVE-2025-1520)

nvd.nist.gov (CVE-2025-1520)

Download JSON