What is CVE-2022-23458?

CVE-2022-23458 is a medium-severity vulnerability in Nhn Toast Ui Grid, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-09-22.

How severe is CVE-2022-23458?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Nhn Toast Ui Grid

CVE-2022-23458

Toast UI Grid is a component to display and edit data. Versions prior to 4.21.3 are vulnerable to cross-site scripting attacks when pasting specially crafted content into editable cells. This issue was fixed in version 4.21.3. There are no known workarounds.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-09-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.4th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001

Affected products

Nhn Toast Ui Grid
Nhn Tui.grid — versions 4.21.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

securitylab.github.com/advisories/GHSL-2022-029_nhn_tui_grid/ (Exploit, Third Party Advisory)
github.com/nhn/tui.grid/commit/e9db5968675ae113c07efc091cce210f2b26854f (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-23458?: CVE-2022-23458 is a medium-severity vulnerability in Nhn Toast Ui Grid, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-09-22.
How severe is CVE-2022-23458?: Medium severity. CVSS v3 base score is 6.1 out of 10.