ZDI-25-099: PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability
First published: Tue Feb 25 2025(Updated: )
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PostHog | ||
| PostHog |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-25-099?
The severity of ZDI-25-099 is rated at 7.1 on the CVSS scale.
How do I fix ZDI-25-099?
To fix ZDI-25-099, ensure you update your PostHog installation to the latest version that contains the patch for this vulnerability.
Who is affected by ZDI-25-099?
ZDI-25-099 affects installations of PostHog that allow network-adjacent attackers to exploit the vulnerability.
Is authentication required to exploit ZDI-25-099?
Yes, authentication is required to exploit ZDI-25-099.
What types of attacks are possible with ZDI-25-099?
ZDI-25-099 allows network-adjacent attackers to execute arbitrary code on affected installations of PostHog.
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