CVE-2022-23458: Toast UI Grid vulnerable to Cross-site scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-09-22 · updated 2026-06-17
Weakness: CWE-79

Description

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.

Affected products

nhn tui.grid: before 4.21.3 — fixed in 4.21.3

How to fix

Upgrade to a fixed version: nhn tui.grid 4.21.3. Check the vendor advisory for mitigations.

References

https://github.com/nhn/tui.grid/commit/e9db5968675ae113c07efc091cce210f2b26854f
https://securitylab.github.com/advisories/GHSL-2022-029_nhn_tui_grid/
https://github.com/nhn/tui.grid/commit/e9db5968675ae113c07efc091cce210f2b26854f
https://securitylab.github.com/advisories/GHSL-2022-029_nhn_tui_grid/

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