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CVE-2025-1520— PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability

Quick assessment

Affected
PostHog PostHog
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PostHog是PostHog开源的一个一体化的开源平台。 PostHog存在SQL注入漏洞，该漏洞源于SQL解析器实现时未验证用户输入，可能导致SQL注入和远程代码执行。

AI Predicted 8.6 Difficulty: Easy EPSS 0.46% · P38
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I. Basic Information for CVE-2025-1520

Vulnerability Information
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Vulnerability Title
PostHog ClickHouse Table Functions SQL Injection Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
PostHog SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PostHog是PostHog开源的一个一体化的开源平台。 PostHog存在SQL注入漏洞，该漏洞源于SQL解析器实现时未验证用户输入，可能导致SQL注入和远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PostHog PostHog b8817c14065c23159dcf52849f0bdcd12516c43e, clickhouse 23.12.6.19-alpine -

II. Public POCs for CVE-2025-1520

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III. Intelligence Information for CVE-2025-1520

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Patches & Fixes for CVE-2025-1520 (1)

Vendor Advisories for CVE-2025-1520 (1)

Same Patch Batch · PostHog · 2025-04-23 · 3 CVEs total

CVE-2025-1521 PostHog slack_incoming_webhook Server-Side Request Forgery Information Disclosure Vulnerab
CVE-2025-1522 PostHog database_schema Server-Side Request Forgery Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same product: PostHog
Same vendor: PostHog
Same weakness: CWE-89

V. Comments for CVE-2025-1520

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