CVE-2020-27832

Severity: critical (CVSS 9.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-27 · updated 2026-06-17
Weakness: CWE-79

Description

A flaw was found in Red Hat Quay, where it has a persistent Cross-site Scripting (XSS) vulnerability when displaying a repository's notification. This flaw allows an attacker to trick a user into performing a malicious action to impersonate the target user. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected products

Red Hat Quay 3: from 3.0.0 before 3.3.2 — fixed in 3.3.2

How to fix

Upgrade to a fixed version: Red Hat Quay 3 3.3.2. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1905784
https://bugzilla.redhat.com/show_bug.cgi?id=1905784

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