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Tool Directory

CVE-2020-13933

HighPublished

Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.

Published: Aug 17, 2020
Updated: Aug 4, 2024
Assigning CNA: apache
Evidence observed: Aug 7, 2026

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS probability estimate

44.4%

Moderate · next 30 days

Percentile: 98.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.

Sources

cve-2020-13933PoC
cve-2020-13933 apache shiro权限绕过漏洞
CVE-2020-13933PoC
CVE-2020-13933 靶场： shiro 认证绕过漏洞
CVE-2020-13933ProjectPoC
This project is a simple springboot+shiro project built to reproduce the CVE-2020-13933 shiro vulnerability.

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