CVE-2026-126286
Received Received - Intake

Reflected XSS in NocoDB via PageLeavingWarning.vue

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: VulnCheck

Description
NocoDB before 2026.08.0 contains a reflected cross-site scripting vulnerability in PageLeavingWarning.vue that allows unauthenticated attackers to execute script by embedding an ASCII control character in the ncRedirectUrl scheme. Attackers can send a crafted link that bypasses the scheme check and reaches the anchor href or window.location, stealing the session token from localStorage for account takeover.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
AI Q&A
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2026-126286
EUVD
EUVD-2026-125235

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
nocodb nocodb to 2026.08.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 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.

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Executive Summary

NocoDB before 2026.08.0 has a reflected cross-site scripting (XSS) vulnerability in PageLeavingWarning.vue. Unauthenticated attackers can exploit this by embedding an ASCII control character in the ncRedirectUrl scheme. This bypasses scheme checks and allows malicious scripts to execute, potentially stealing session tokens from localStorage for account takeover.

Detection Guidance

To detect this vulnerability, inspect NocoDB instances for versions before 2026.08.0. Check for reflected XSS by monitoring unusual URL parameters containing ASCII control characters or ncRedirectUrl schemes. Review server logs for suspicious requests targeting PageLeavingWarning.vue.

Impact Analysis

This vulnerability allows attackers to steal your session token via a crafted link, leading to unauthorized account access. It can also enable further attacks like data theft or session hijacking if combined with other vulnerabilities.

Mitigation Strategies

Immediately upgrade NocoDB to version 2026.08.0 or later. Implement input validation to block ASCII control characters in URLs. Add Content Security Policy headers to mitigate XSS risks. Monitor for unauthorized session token access or account takeover attempts.

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