Administrator phishing via backslash-obfuscated callback URL
Published Mar 5, 2023 · Updated Mar 7, 2025
Open redirect in web2py before 2.23.1 allows remote attackers to send administrators to arbitrary sites through a crafted admin URL. The admin login callback accepts a backslash-obfuscated network-path URL in the send parameter because redirect validation fails to normalize backslashes. An administrator must open the URL and submit the login form; the external redirect enables phishing without directly compromising the server.
Summary
What happened
Open redirect in web2py before 2.23.1 allows remote attackers to send administrators to arbitrary sites through a crafted admin URL. The admin login callback accepts a backslash-obfuscated network-path URL in the send parameter because redirect validation fails to normalize backslashes. An administrator must open the URL and submit the login form; the external redirect enables phishing without directly compromising the server.
The record
- CVE
- CVE-2023-22432
- Published
- Mar 5, 2023
- Updated
- Mar 7, 2025
- Vendor
- web2py
- Product
- web2py
- Classifications
- CWE-601, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 5, 2023CVE publishedPublication date reported by the CVE source.
- Mar 7, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=versions prior to 2.23.1
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- PoC verification of web2py CVE-2023-22432proof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo