CVE-2025-1521

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-1521
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1521.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-1521
Published
2025-04-23T17:16:52Z
Modified
2025-05-20T03:18:49.055740Z
Summary
[none]
Details

PostHog slackincomingwebhook 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 slackincomingwebhook 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.

References

Affected packages

Git / github.com/posthog/posthog

Affected ranges

Type
GIT
Repo
https://github.com/posthog/posthog
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

1.*

1.0.0
1.0.1
1.0.10
1.0.10.1
1.0.10.2
1.0.11
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.0.8
1.0.8.1
1.0.8.2
1.0.8.3
1.0.9
1.1.0
1.1.0.1
1.22.0-beta
1.25.0-beta

Other

list

release-1.*

release-1.22.0-beta