CVE-2022-48197: Reflected cross-site scripting (XSS) exists in Sandbox examples in the YUI2 repository

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MEDIUM 6.1UPGRADE

CVE-2022-48197 is a medium-severity flaw (CVSS 6.1) affecting yui. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Reflected cross-site scripting (XSS) exists in Sandbox examples in the YUI2 repository. The download distributions, TreeView component and the YUI Javascript library overall are not affected. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Why this priority

EPSS top 6%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	6.8% (top 6%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-01-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: yui project

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

Am I affected?

Timeline

2023-01-02 16:15 UTCPublished CVE record published
2026-06-17 05:14 UTCUpdated Record last modified

yui project yui UPGRADE

Affected: >= 2000 and <= 2800

Fixed in: newer than 2800

Safe to downgrade to: a release before 2000

1. Check installed version

apt-cache policy yui || rpm -q yui || yui --version

2. UPGRADE to newer than 2800 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yui

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yui

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2000 (Debian / Ubuntu)

apt-cache madison yui sudo apt install yui=<VERSION_BEFORE_2000> sudo apt-mark hold yui

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list yui sudo dnf downgrade yui-<VERSION_BEFORE_2000> sudo dnf versionlock add yui

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Yahoo User Interface library (YUI2) TreeView v2.8.2 - Multiple Reflected Cross Site Scripting (XSS)
Nuclei scan template: Yahoo User Interface library (YUI2) TreeView v2.8.2 - Cross-Site Scripting

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-2022-48197?

yui: upgrade to newer than 2800. Exact commands for each OS are on this page.

Is CVE-2022-48197 being exploited?

CVE-2022-48197 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-2022-48197 affect?

CVE-2022-48197 affects yui. Severity is medium (CVSS 6.1). Reflected cross-site scripting (XSS) exists in Sandbox examples in the YUI2 repository. The download distributions, TreeView component and the YUI Javascript library overall are not affected. NOTE: This vulnerability only affects products t

How urgent is CVE-2022-48197?

Priority 50/100. EPSS top 6%: very likely to be exploited; Public exploit reference

References

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