CVE-2020-27832 Cross-site scripting in quay
Persistent XSS in Red Hat Quay allows attackers to impersonate users and compromise confidentiality, integrity, and availability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-27832?
CVE-2020-27832 is a critical cross-site scripting vulnerability in quay, published on 27 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2020-27832?
It affects 1 product.
Products include Redhat Quay.
How do I fix CVE-2020-27832?
No fix has been published for CVE-2020-27832 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2020-27832 being exploited?
There is no known exploitation of CVE-2020-27832 in the wild and no public exploit code.
Other vulnerabilities in quay
- CVE-2025-4374 Quay: incorrect privilege assignment
- CVE-2023-4956 Quay: clickjacking on config-editor page severity
- CVE-2023-4959 Quay: cross-site request forgery (csrf) on config-editor page
- CVE-2019-10205 Information disclosure in quay
- CVE-2026-6848 Quay: red hat quay: authentication bypass allows privileged actions without valid credentials
Sources
Also known as GHSA-2xp8-j5vh-vcrw.