NocoDB Vulnerable to Stored Cross-site Scripting via Comments

CVE-2026-28397 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Summary

Comments rendered via v-html without sanitization, enabling stored XSS.

Details

Comments in Comments.vue were parsed by markdown-it with html: true and injected via v-html without DOMPurify. A user with Commenter role can inject arbitrary HTML that executes for all viewers.

Impact

Stored XSS — malicious scripts execute for any user viewing the comment.

Credit

This issue was discovered by an AI agent developed by the GitHub Security Lab and reviewed by GHSL team members @p- (Peter Stockli) and @m-y-mo (Man Yue Mo).

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2026-03-03 20:59:38 UTC
Updated
2026-03-03 20:59:40 UTC
GitHub reviewed
2026-03-03 20:59:38 UTC
NVD published
2026-03-02

EPSS Score

Score Percentile
0.03% 10.30%

CVSS Scores

Base score Version Severity Vector
5.3 4.0 —
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 Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:P)
A user has to participate (for example click/open/approve).
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:L)
Limited confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:L)
Limited integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.

Identifiers

Type Value
GHSA GHSA-rcph-x7mj-54mm ↗
CVE CVE-2026-28397 ↗

CWEs

CWE id Name
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Credits

  • p- (reporter)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
npm nocodb <= 0.301.2 0.301.3 —

References

cvelogic Threat Intelligence