CVE-2023-28109: Play With Docker is a browser-based Docker playground

This month

MEDIUM 6.5WATCHLISTDOWNGRADE

CVE-2023-28109 is a medium-severity flaw (CVSS 6.5) affecting play with docker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Play With Docker is a browser-based Docker playground. Versions 0.0.2 and prior are vulnerable to domain hijacking. Because CORS configuration was not correct, an attacker could use `play-with-docker.com` as an example and set the origin header in an http request as `evil-play-with-docker.com`. The domain would echo in response header, which successfully bypassed the CORS policy and retrieved basic user information. This issue has been fixed in c

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-639
Published	2023-03-16
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: play-with-docker

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-03-16 17:15 UTCPublished CVE record published
2026-06-17 05:46 UTCUpdated Record last modified

play-with-docker play with docker DOWNGRADE

Affected: 0.0.1 · 0.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.0.1

1. Check installed version

apt-cache policy play-with-docker || rpm -q play-with-docker || play-with-docker --version

2. No fixed release: DOWNGRADE to a release before 0.0.1 (Debian / Ubuntu)

apt-cache madison play-with-docker sudo apt install play-with-docker=<VERSION_BEFORE_0.0.1> sudo apt-mark hold play-with-docker

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list play-with-docker sudo dnf downgrade play-with-docker-<VERSION_BEFORE_0.0.1> sudo dnf versionlock add play-with-docker

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-28109?

play with docker: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-28109 being exploited?

CVE-2023-28109 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-28109 affect?

CVE-2023-28109 affects play with docker. Severity is medium (CVSS 6.5). Play With Docker is a browser-based Docker playground. Versions 0.0.2 and prior are vulnerable to domain hijacking. Because CORS configuration was not correct, an attacker could use `play-with-docker.com` as an example and set the origin he

How urgent is CVE-2023-28109?

Priority 41/100. On your watchlist

Software pages

Docker vulnerabilities

Related CVEs

CVE-2023-34844 CRITICAL 9.8 UPGRADE Play With Docker < 0.0.2 has an insecure CAP_SYS_ADMIN privileged mode causing the docker container to escape.

References

← Back to latest CVEs