CVE-2022-33146Network attack vector

Phishing redirects via unvalidated admin send parameter

Published Jun 27, 2022 · Updated Aug 3, 2024

Open redirect in the admin index handler in web2py before 2.22.5 allows remote attackers to redirect users through crafted URLs. The handler accepts request.vars.send as a redirect target without applying prevent_open_redirect, so external destinations pass through. Exploitation requires a user to open the crafted link; the redirect can send that user to an attacker-chosen phishing site.

CVSS severity6.1
Medium
EPSS probability1.57%
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 the admin index handler in web2py before 2.22.5 allows remote attackers to redirect users through crafted URLs. The handler accepts request.vars.send as a redirect target without applying prevent_open_redirect, so external destinations pass through. Exploitation requires a user to open the crafted link; the redirect can send that user to an attacker-chosen phishing site.

The record

CVE
CVE-2022-33146
Published
Jun 27, 2022
Updated
Aug 3, 2024
Vendor
web2py
Product
web2py
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=versions prior to 2.22.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

web2py · web2pyversion=versions prior to 2.22.5

Published CVSS scores

2.6JPCERT/CCAV:N/AC:H/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:N
4.7JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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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