THREATPORT/VULNERABILITY/CVE-2020-13933
HIGH SEVERITY

CVE-2020-13933

Shiro vulnerability

CVSS
7.5
EPSS
48.0%
EPSS pct
99th
Exploited
No known
Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.
Affected vendor
Apache
Affected product
Shiro
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2020-08-17

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 48.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2020-13933

  • Confirm whether Apache Shiro is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-13933.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-13933

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-13933 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2020-13933?

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