What is CVE-2021-32721?

CVE-2021-32721 is a medium-severity vulnerability in Andrewburian Powermux, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2021-06-29.

How severe is CVE-2021-32721?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Open Redirect in Andrewburian Powermux

CVE-2021-32721

PowerMux is a drop-in replacement for Go's http.ServeMux. In PowerMux versions prior to 1.1.1, attackers may be able to craft phishing links and other open redirects by exploiting the trailing slash redirection feature. This may lead to users being redirected to untrusted sites after following an attacker crafted link. The issue is resolved in v1.1.1. There are no existing workarounds.

Vulnerability class: Open Redirect

EPSS: 0.006 (45.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Andrewburian Powermux — versions < 1.1.1
Powermux_project Powermux

Weakness classification (CWE)

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

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-32721?: CVE-2021-32721 is a medium-severity vulnerability in Andrewburian Powermux, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2021-06-29.
How severe is CVE-2021-32721?: Medium severity. CVSS v3 base score is 4.7 out of 10.