CVE-2026-28398: Nocodb Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-8vm4-g489-v3w7
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CWE-79
Published
Advisory Summary

CVE-2026-28398 is a MODERATE cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Nocodb libraries in the npm ecosystem. The issue involves nocodb vulnerable to stored cross-site scripting via comments and rich text cells. Remediation is available by upgrading affected packages to version 0.301.3.

CVE-2026-28398 at a Glance

CVE Identifier CVE-2026-28398
GHSA Identifier GHSA-8vm4-g489-v3w7
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Nocodb
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-28398

To remediate this vulnerability, upgrade all affected Nocodb dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

nocodb fixed: 0.301.3 
npm install nocodb@0.301.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls nocodb

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-28398, inspect your project dependencies using npm:

npm ls nocodb

Analyze the terminal output to locate any version of Nocodb in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.301.3), your application is affected.

Note: The npm ls nocodb command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Nocodb, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary User-controlled content in comments and rich text cells was rendered via `v-html` without sanitization, enabling stored XSS. ### Details Comments in `Comments.vue` and rich text in `TextArea.vue` were parsed by markdown-it with `html: true` and injected via `v-html`. The codebase had `vue-dompurify-html` available but these paths used raw `v-html`. Server-side, `Comment.insert()` used `extractProps()` instead of `extractPropsAndSanitize()`. Commenter role is sufficient for the comments vector; Editor role for rich text. This issue was independently reported; see also GHSA-rcph-x7mj-54mm and GHSA-wwp2-x4rj-j8rm for the same root cause found by GitHub Security Lab. ### Impact Stored XSS — malicious scripts execute for any user viewing the comment or cell. ### Credit This issue was reported by [@bugbunny-research](https://github.com/bugbunny-research) (bugbunny.ai).

CVE-2026-28398 Affected Nocodb Versions

1 component(s)
Fixed Versions:
0.301.3
Product / Package Ecosystem Affected Versions Fixed Version
nocodb
npm/nocodb
npm
< 0.301.3
0.301.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/nocodb/nocodb/security/advisories/GHSA-8vm4-g489-v3w7
NVD — CVE-2026-28398 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28398
Nocodb Source Repository REPOSITORY
https://github.com/nocodb/nocodb
Nocodb Release RELEASE
https://github.com/nocodb/nocodb/releases/tag/0.301.3

Frequently Asked Questions

What is CVE-2026-28398?
CVE-2026-28398 is a security vulnerability in Nocodb involving NocoDB Vulnerable to Stored Cross-Site Scripting via Comments and Rich Text Cells under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Nocodb versions are affected?
Affected versions include releases prior to 0.301.3 across affected packages: nocodb.
What version fixes CVE-2026-28398?
Upgrading to 0.301.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nocodb affected?
Yes, nocodb is affected in releases prior to 0.301.3. Upgrade your dependency to 0.301.3 or later.
What CWE is associated with CVE-2026-28398?
CVE-2026-28398 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2026-28398?
Run the dependency tree command: 'npm ls nocodb'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-8vm4-g489-v3w7",
  "modified" : "2026-03-03T20:58:44Z",
  "published" : "2026-03-03T20:58:44Z",
  "aliases" : [ "CVE-2026-28398" ],
  "summary" : "NocoDB Vulnerable to Stored Cross-Site Scripting via Comments and Rich Text Cells",
  "details" : "### Summary\nUser-controlled content in comments and rich text cells was rendered via `v-html` without sanitization, enabling stored XSS.\n\n### Details\nComments in `Comments.vue` and rich text in `TextArea.vue` were parsed by markdown-it with `html: true` and injected via `v-html`. The codebase had `vue-dompurify-html` available but these paths used raw `v-html`. Server-side, `Comment.insert()` used `extractProps()` instead of `extractPropsAndSanitize()`.\n\nCommenter role is sufficient for the comments vector; Editor role for rich text.\n\nThis issue was independently reported; see also GHSA-rcph-x7mj-54mm and GHSA-wwp2-x4rj-j8rm for the same root cause found by GitHub Security Lab.\n\n### Impact\nStored XSS — malicious scripts execute for any user viewing the comment or cell.\n\n### Credit\nThis issue was reported by [@bugbunny-research](https://github.com/bugbunny-research) (bugbunny.ai).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "nocodb"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.301.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.301.2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nocodb/nocodb/security/advisories/GHSA-8vm4-g489-v3w7"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-28398"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nocodb/nocodb"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nocodb/nocodb/releases/tag/0.301.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-03T20:58:44Z",
    "nvd_published_at" : "2026-03-02T17:16:34Z"
  }
}