CVE-2021-4325: A vulnerability, which was classified as problematic, has been found in NHN TOAST UI Chart 4.1.4

Routine

LOW 3.5DOWNGRADE

CVE-2021-4325 is a low-severity flaw (CVSS 3.5) affecting toast ui chart. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as problematic, has been found in NHN TOAST UI Chart 4.1.4. This issue affects some unknown processing of the component Legend Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. Upgrading to version 4.2.0 is able to address this issue. The identifier of the patch is 1a3f455d17df379e11b501bb5ba1dd1bcc41d63e. It is recommended to upgrade the affected component. The id

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-02-22
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: nhncloud

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

Am I affected?

Timeline

2023-02-22 00:15 UTCPublished CVE record published
2026-06-17 04:19 UTCUpdated Record last modified

nhncloud toast ui chart DOWNGRADE

Affected: 4.1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.1.4

1. Check installed version

apt-cache policy toast-ui-chart || rpm -q toast-ui-chart || toast-ui-chart --version

2. No fixed release: DOWNGRADE to a release before 4.1.4 (Debian / Ubuntu)

apt-cache madison toast-ui-chart sudo apt install toast-ui-chart=<VERSION_BEFORE_4.1.4> sudo apt-mark hold toast-ui-chart

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

dnf --showduplicates list toast-ui-chart sudo dnf downgrade toast-ui-chart-<VERSION_BEFORE_4.1.4> sudo dnf versionlock add toast-ui-chart

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-2021-4325?

toast ui chart: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-4325 being exploited?

CVE-2021-4325 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-2021-4325 affect?

CVE-2021-4325 affects toast ui chart. Severity is low (CVSS 3.5). A vulnerability, which was classified as problematic, has been found in NHN TOAST UI Chart 4.1.4. This issue affects some unknown processing of the component Legend Handler. The manipulation leads to cross site scripting. The attack may be

How urgent is CVE-2021-4325?

Priority 23/100. No elevated risk signals yet.

References

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