CVE-2026-47387Network attack vector

Stored XSS via unchecked form redirect scheme

Published Jun 23, 2026 · Updated Jun 23, 2026

Stored XSS in NocoDB before 2026.05.1 allows remote authenticated users to execute script in a viewer's session through a form redirect. The shared form-view submit handler assigns redirect_url to window.location.href after checking the host but not the scheme, so a javascript: value executes in the NocoDB origin. An editor can plant the value, but an authenticated viewer must submit the shared form; the script can read the viewer's locally stored session token and act within that viewer's permissions.

CVSS severity8.4
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in NocoDB before 2026.05.1 allows remote authenticated users to execute script in a viewer's session through a form redirect. The shared form-view submit handler assigns redirect_url to window.location.href after checking the host but not the scheme, so a javascript: value executes in the NocoDB origin. An editor can plant the value, but an authenticated viewer must submit the shared form; the script can read the viewer's locally stored session token and act within that viewer's permissions.

The record

CVE
CVE-2026-47387
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
NocoDB
Product
NocoDB
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.05.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NocoDB · NocoDBversion=< 2026.05.1

Published CVSS scores

8.7turingpointCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
8.4GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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