High severity8.0NVD Advisory· Published Apr 23, 2025· Updated Jun 17, 2026
CVE-2025-1520
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@posthog/plugin-servernpm | <= 1.10.7 | — |
Affected products
3Patches
Vulnerability mechanics
References
5- github.com/PostHog/posthog/commit/6e8f035f9acd339c5ba87ba6ea40fc1ab3053d42nvdPatchWEB
- github.com/advisories/GHSA-v64v-fq96-c5wvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-1520ghsaADVISORY
- www.zerodayinitiative.com/advisories/ZDI-25-099/nvdThird Party Advisory
- www.zerodayinitiative.com/advisories/ZDI-25-099ghsaWEB
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