What’s Vulnerable › Vulnerabilities

CVE-2021-28290

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-11 · updated 2026-06-17
• Weakness: CWE-79

Description

A cross-site scripting (XSS) vulnerability in Skoruba IdentityServer4.Admin before 2.0.0 via unencoded value passed to the data-secret-value parameter.

Affected products

• Identityserver4.Admin Project Identityserver4.Admin: before 2.0.0 — fixed in 2.0.0

How to fix

Upgrade to a fixed version: Identityserver4.Admin Project Identityserver4.Admin 2.0.0. Check the vendor advisory for mitigations.

References

• https://github.com/skoruba/IdentityServer4.Admin/issues/813
• https://github.com/skoruba/IdentityServer4.Admin/issues/813

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