CVE-2021-32721

low-risk
Published 2021-06-29

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.

Do I need to act?

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0.20% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Powermux

Affected Vendors

Powermux Project

References (2)

Third Party Advisory https://github.com/AndrewBurian/powermux/security/advisories/GHSA-mj9r-wwm8-7q52
Third Party Advisory https://github.com/AndrewBurian/powermux/security/advisories/GHSA-mj9r-wwm8-7q52
21
/ 100
low-risk
Severity 15/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal