CVE-2021-32721
CVE-2021-32721 is a medium-severity vulnerability in Powermux Project Powermux with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 4.7)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (45th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Powermux Project Powermux
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2021-32721?
- CVE-2021-32721 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-32721 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-32721?
- CVE-2021-32721 affects Powermux Project Powermux. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-32721?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-32721 published?
- CVE-2021-32721 was published on 2021-06-29 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:powermux_project:powermux:*:*:*:*:*:*:*:*
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