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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2025-1521

Change History

New CVE Received from Zero Day Initiative 4/23/2025 1:16:52 PM

Action Type Old Value New Value
Added Description 

								
							
							
								
							
						
								
							
								
PostHog slack_incoming_webhook Server-Side Request Forgery Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PostHog. Authentication is required to exploit this vulnerability.

The specific flaw exists within the processing of the slack_incoming_webhook parameter. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-25352.

								
								
					

					

						Added
						CVSS V3
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

								
								
					

					

						Added
						CWE
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
CWE-918

								
								
					

					

						Added
						Reference
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
https://github.com/PostHog/posthog/commit/6e8f035f9acd339c5ba87ba6ea40fc1ab3053d42

								
								
					

					

						Added
						Reference
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
https://www.zerodayinitiative.com/advisories/ZDI-25-096/