Riskcovery

CVE-2022-39348

Twisted vulnerable to NameVirtualHost Host header injection

State
Published
Severity
5.4 Medium
Published
Oct 26, 2022
Updated
Nov 3, 2025
Reserved
Sep 2, 2022

Read the record on cve.org

Description

Twisted is an event-based framework for internet applications. Started with version 0.9.4, when the host header does not match a configured host `twisted.web.vhost.NameVirtualHost` will return a `NoResource` resource which renders the Host header unescaped into the 404 response allowing HTML and script injection. In practice this should be very difficult to exploit as being able to modify the Host header of a normal HTTP request implies that one is already in a privileged position. This issue was fixed in version 22.10.0rc1. There are no known workarounds.

Scores

CVSSScoreVectorSource
3.15.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NGitHub_M

Weaknesses

  • CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
twistedtwisted
  • >= 0.9.4, < 22.10.0rc1Affected

References

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