CVE-2022-0645Public exploitNetwork attack vector

Open redirect via unvalidated redirect host

Published Apr 19, 2022 · Updated Aug 2, 2024

Open redirect in PostHog before 1.34.1 allows remote attackers to send users to attacker-controlled sites via authorize_and_redirect/?redirect=. The endpoint trusted the requested redirect host and insufficiently constrained it against the team’s permitted app URLs, allowing an external destination. Exploitation requires a crafted link and victim interaction; it facilitates phishing or credential capture but does not itself grant server-side data access.

CVSS severity5.8
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in PostHog before 1.34.1 allows remote attackers to send users to attacker-controlled sites via authorize_and_redirect/?redirect=. The endpoint trusted the requested redirect host and insufficiently constrained it against the team’s permitted app URLs, allowing an external destination. Exploitation requires a crafted link and victim interaction; it facilitates phishing or credential capture but does not itself grant server-side data access.

The record

CVE
CVE-2022-0645
Published
Apr 19, 2022
Updated
Aug 2, 2024
Vendor
PostHog
Product
PostHog
Classifications
CWE-601
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.34.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PostHog · PostHogversion=unspecified <1.34.1

Published CVSS scores

5.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:N
6.1huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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