XSS in Nocodb

CVE-2026-28359

NocoDB is software for building databases as spreadsheets. Prior to version 0.301.3, an authenticated user with Editor role can inject arbitrary HTML into Rich Text cells by bypassing the TipTap editor and sending raw HTML via the API. This issue has been patched in version 0.301.3.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (4.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-28359?
CVE-2026-28359 is a medium-severity vulnerability in Nocodb, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-02.
How severe is CVE-2026-28359?
Medium severity. CVSS v3 base score is 5.4 out of 10.