What is the severity of ZDI-CAN-25350?

ZDI-CAN-25350 has been assigned a CVSS rating of 7.1, indicating high severity.

How do I fix ZDI-CAN-25350?

To fix ZDI-CAN-25350, you should update your PostHog installation to the latest version provided by the vendor.

Who is affected by ZDI-CAN-25350?

Any installations of PostHog that are configured in a network-adjacent environment and require authentication are affected by ZDI-CAN-25350.

Is authentication required to exploit ZDI-CAN-25350?

Yes, authentication is required to exploit the vulnerability identified as ZDI-CAN-25350.

Vulnerability/
ZDI-CAN-25350

high

7.1

25/2/2025

23/4/2025

ZDI-CAN-25350: 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

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of ZDI-CAN-25350?
ZDI-CAN-25350 has been assigned a CVSS rating of 7.1, indicating high severity.
How do I fix ZDI-CAN-25350?
To fix ZDI-CAN-25350, you should update your PostHog installation to the latest version provided by the vendor.
Who is affected by ZDI-CAN-25350?
Any installations of PostHog that are configured in a network-adjacent environment and require authentication are affected by ZDI-CAN-25350.
What type of attack can exploit ZDI-CAN-25350?
ZDI-CAN-25350 allows network-adjacent attackers to execute arbitrary code on affected installations.
Is authentication required to exploit ZDI-CAN-25350?
Yes, authentication is required to exploit the vulnerability identified as ZDI-CAN-25350.

collector/zdi-published
source/ZDI
alias/ZDI-CAN-25350
agent/first-publish-date
agent/type
agent/title
agent/source
agent/last-modified-date
agent/guess-ai
agent/software-canonical-lookup
agent/severity
agent/references
agent/softwarecombine
agent/tags
agent/description
collector/zdi-advisory
alias/ZDI-25-099
alias/CVE-2025-1520
agent/event
vendor/posthog
canonical/posthog

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.