CVE-2023-46746 Authenticated PostHog users vulnerable to SSRF
Authenticated users can exploit a Server-Side Request Forgery vulnerability in PostHog webhooks to forge POST requests to internal resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-46746?
CVE-2023-46746 is a medium-severity server-side request forgery vulnerability in posthog, published on 1 Dec 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
PostHog provides open-source product analytics, session recording, feature flagging and A/B testing that you can self-host. A server-side request forgery (SSRF), which can only be exploited by authenticated users, was found in Posthog. Posthog did not verify whether a URL was local when enabling webhooks, allowing authenticated users to forge a POST request. This vulnerability has been addressed in `22bd5942` and will be included in subsequent releases. There are no known workarounds for this vulnerability.
Weakness: CWE-918
Which versions are affected by CVE-2023-46746?
It affects 1 product.
Products include Posthog Posthog.
How do I fix CVE-2023-46746?
No fix has been published for CVE-2023-46746 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2023-46746 being exploited?
There is no known exploitation of CVE-2023-46746 in the wild and no public exploit code.
Other vulnerabilities in posthog
- CVE-2025-1520 PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability
- CVE-2025-1521 PostHog slack_incoming_webhook Server-Side Request Forgery Information Disclosure Vulnerability
- CVE-2025-1522 PostHog database_schema Server-Side Request Forgery Information Disclosure Vulnerability
- CVE-2024-9710 PostHog database_schema Server-Side Request Forgery Information Disclosure Vulnerability
- CVE-2022-0645 Open redirect vulnerability via endpoint authorize_and_redirect/?redirect= in posthog/posthog
Sources
Also known as GHSA-wqqw-r8c5-j67c.