What is CVE-2022-0645?

CVE-2022-0645 is a medium-severity vulnerability in Posthog, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2022-04-19.

How severe is CVE-2022-0645?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Posthog

CVE-2022-0645

Open redirect vulnerability via endpoint authorize_and_redirect/?redirect= in GitHub repository posthog/posthog prior to 1.34.1.

Vulnerability class: Open Redirect

Published 2022-04-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

Posthog
Posthog Posthog/posthog — versions unspecified

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

huntr.dev/bounties/c13258a2-30e3-4261-9a3b-2f39c49a8bd6 (Exploit, Third Party Advisory)
github.com/posthog/posthog/commit/859d8ed9ac7c5026db09714a26c85c1458abb038 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-0645?: CVE-2022-0645 is a medium-severity vulnerability in Posthog, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2022-04-19.
How severe is CVE-2022-0645?: Medium severity. CVSS v3 base score is 6.1 out of 10.