CVE-2023-3384: Quay: stored cross site scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-24 · updated 2026-08-06
Weakness: CWE-79

Description

A flaw was found in the Quay registry. While the image labels created through Quay undergo validation both in the UI and backend by applying a regex (validation.py), the same validation is not performed when the label comes from an image. This flaw allows an attacker to publish a malicious image to a public registry containing a script that can be executed via Cross-site scripting (XSS).

Affected products

Red Hat Quay 3: 3.0.0

References

https://access.redhat.com/errata/RHBA-2024:11113
https://access.redhat.com/security/cve/CVE-2023-3384
https://bugzilla.redhat.com/show_bug.cgi?id=2216924
https://access.redhat.com/security/cve/CVE-2023-3384
https://bugzilla.redhat.com/show_bug.cgi?id=2216924

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