🛡️ CVE-2017-1000163 — phoenix

⚪ Unknown ✅ No Known Exploit CWE-601 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Phoenix Arbitrary URL Redirect

The Phoenix team designed Phoenix.Controller.redirect/2 to protect against redirects allowing user input to redirect to an external URL where your application code otherwise assumes a local path redirect. This is why the :to option is used for “local” URL redirects and why you must pass the :external option to intentionally allow external URLs to be redirected to. It has been disclosed that carefully crafted user input may be treated by some browsers as an external URL. An attacker can use this vulnerability to aid in social engineering attacks. The most common use would be to create highly believable phishing attacks. For example, the following user input would pass local URL validation, but be treated by Chrome and Firefox as external URLs:

http://localhost:4000/?redirect=/\nexample.com

Not all browsers are affected, but latest Chrome and Firefox will issue a get request for example.com and successfully redirect externally

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

CVE-2017-1000163 is classified as CWE-601: Open Redirect. A redirect target is taken from user input, so a trusted link can send the visitor to an attacker's site.

Affected software

CVE-2017-1000163 is recorded against 1 package.

  • phoenix

Timeline and source

Published on 12 April 2022 and last revised on 10 December 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
elixirforum.com (Web)
github.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE CWE-601
Public Exploit ✅ No
Source OSV
Published 2022-04-12
Updated 2026-08-12
Modified 2025-12-10
Fix URL N/A

Affected Packages

Software From version Fixed in
phoenix — —

Similar Threats

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